9 Millennials’ Habits That Annoy Their Gen Z Coworkers (and Vice Versa)

October 31, 2025

Woman Sharing Her Presentation with her Colleagues

The modern workplace isn’t just a mix of job titles; it’s a blend of generations trying to find common ground. Millennials and Gen Z share creativity, tech fluency, and progressive ideals, yet their approaches often clash in unexpected ways. Millennials prefer structure, emails, and polished communication, while Gen Z values speed, authenticity, and constant connection. These differences don’t just cause friction; they redefine how teamwork, productivity, and professionalism evolve. Here are the habits that often test patience between these two digital generations.

1. Gen Z’s Love for Slang and Informal Chats

Communication in workplace
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For Gen Z, casual language isn’t a sign of unprofessionalism; it’s a mark of authenticity. They communicate the way they text: fast, expressive, and full of humor. Emojis, abbreviations, and trending phrases make digital communication feel more human in a screen-heavy world. But to many Millennials, this can feel too relaxed or even confusing in formal settings. They were raised to view polished, carefully worded messages as professional. This difference often leads to small misinterpretations, where Gen Z feels misunderstood and Millennials feel disrespected.

2. Millennials’ Overuse of Emails

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Millennials still see emails as the backbone of professional communication. It’s what they grew up using to prove accountability and document every detail. Gen Z, however, views long threads and “per my last email” exchanges as relics of a slower time. They prefer direct messages, shared platforms, or video chats that make collaboration instant and transparent. What Millennials consider thorough, Gen Z sees as time-consuming. These preferences highlight how workplaces have evolved from structured communication to fluid, real-time dialogue.

3. Gen Z’s Constant Need for Feedback

Gen Z’s Constant Need for Feedback
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Having grown up surrounded by social validation from likes to instant comments, Gen Z naturally seeks continuous feedback at work. They want to know if they’re on track and how to improve quickly. Millennials, on the other hand, were conditioned to figure things out with minimal guidance, as constant supervision once implied mistrust. To them, Gen Z’s approach can seem dependent or impatient. But in truth, it reflects a generation eager to grow through connection and mentorship rather than trial and error.

4. Millennials’ Obsession with Work-Life Balance

Millennials’ Obsession with Work-Life Balance
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Millennials spent much of their early careers fighting against burnout culture, so they prize flexible schedules and personal time. They see balance as a measure of success and mental stability. Gen Z, however, tends to blur the line between work and personal life, often weaving side hustles and passions into their professional identities. While Millennials focus on separation, Gen Z sees integration as the key to fulfillment. Their contrasting views show how definitions of balance evolve with changing workplace values.

5. Gen Z’s Preference for Speed Over Perfection

Gen Z’s Preference for Speed Over Perfection
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Gen Z is all about momentum. They grew up in a world where updates happen overnight, and progress is more valuable than perfection. They’d rather share an idea early and refine it collaboratively than spend weeks perfecting it in silence. Millennials, shaped by traditional workplace expectations, often prefer to polish and finalize before presenting. This can create friction. Gen Z thinks Millennials overthink, while Millennials think Gen Z rushes. Both perspectives reflect valid priorities: efficiency versus precision.

6. Millennials’ Love for Meetings

Millennials’ Love for Meetings
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Millennials see meetings as moments for collaboration and connection. They like face-to-face discussion, brainstorming, and clarity that comes from conversation. But Gen Z, raised on digital coordination tools, finds most meetings unnecessary. They prefer short check-ins, quick Slack threads, or shared notes that save time and keep momentum going. To them, spending hours in meetings feels outdated. The difference reveals a generational divide between valuing personal interaction and maximizing productivity through digital efficiency.

7. Gen Z’s Public Callouts and Activism at Work

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Gen Z grew up in an era of transparency and social justice, and they bring those values into the workplace. They expect companies to stand for something meaningful and aren’t afraid to speak out if they see hypocrisy. While Millennials often share these beliefs, they tend to approach activism with tact and internal advocacy. Gen Z’s open callouts can feel blunt to older colleagues, yet their boldness often drives real change. They’re redefining what corporate accountability and courage look like.

8. Millennials’ Overreliance on Traditional Hierarchies

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Millennials entered a corporate world where titles and seniority carried weight, and they learned to respect hierarchy as a path to advancement. Gen Z views this structure as outdated, believing influence should come from innovation and skill, not tenure. When Millennials expect deference, Gen Z’s informal tone can seem disrespectful. But their approach reflects a new era of collaboration, where leadership is shared and creativity trumps hierarchy, a shift toward workplaces that value contribution over position.

9. Gen Z’s “Job-Hopping” Mentality

Gen Z’s “Job-Hopping” Mentality
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Gen Z doesn’t believe in waiting years for promotions or fulfillment. They see frequent job changes as strategic, each move an opportunity to learn, grow, or find alignment with their values. Millennials, who weathered the 2008 recession, often see stability as success and view job-hopping with caution. To them, loyalty builds trust and career reputation. This difference sometimes causes tension, but it’s also pushing employers to rethink retention, flexibility, and what long-term commitment means in today’s evolving job market.