How appropriate is it to use informal 'you' address in a work environment?

The use of informal address with "you" in the workplace depends on the corporate culture, team, and context. In some companies and teams, it is normal and fosters a more friendly atmosphere and open communication. In others, it may be perceived as disrespect or a violation of business etiquette.

Recommendations:

• If you are a newcomer, it is better to start with formal address ("you") to avoid misunderstandings.
• Pay attention to the communication style of colleagues and management.
• In teams with a young and informal culture, "you" is often appropriate.
• In official communications, with clients or senior management, it is better to use "you".

Thus, appropriateness depends on the specific situation and the norms accepted in the team.