@chancerydaily it's complicated.
Some obvious: visas, too much unvested stocks, bad market, maybe you like the new management who knows
Also maybe you just bother about stuff at top. A job is simply to give you money to pursue your passion or give a good life to family
But also after a while you start feeling strong ownership. It's like I won't leave, you make me leave if you want to.
When you have spent years building and creating something... You can't just walk away easy.