Hang in there, not all employers are equal in this respect. Try to find a company with a high hiring bar, that will improve your chances of finding a team without that mentality.
You'd be surprised. Most places I've been to initially say that they aren't, but as soon as anything goes mildly south, that mentality changes in a heartbeat. I'm generally "the young rockstar", so a lot of it is an aspect of a lack of trust, I think.
I stopped hanging in there, rented out an office and started working on my own thing. ;)