[bottd]

This is somewhat self-fulfilling is it not? I fear my valuable employee may leave, so to protect myself in this situation I withhold resources I could have granted them. Said employees later realize they could get better and leave.

[ghaff]

It is in many cases. Short tenures often become normalized all the way around so companies tend to expect employees not to stick around too long and employees have a mindset that frequent job hunting is just what you do.