When an employee is leaving a company, it's common for them to send out a group email to other employees they know to announce their departure and to share non-work contact details (personal email, LinkedIn, etc.).
To me, it would seem natural in these emails to briefly mention your future employment plans - specifically, where you're moving to next (assuming you have a new job). I've been surprised to learn that this is actually quite uncommon. This I've learned from:
Re-reading departure emails from people who left my current company for other companies, and realizing that they didn't mention their future employer (in all cases I knew the future employer from in person conversations).
Looking at departure email templates online and seeing the vast majority don't mention a future employer.
I have two questions about this:
Is there a reason why this is the culture?
If I'm leaving my current company and I do mention where I'm moving to, will this be considered strange or rude?