Another common reason is when you get new manager(s) and they don't respect the insight which "All the superstars at my current company have been here for a while" have.

Often the superstars are just normal people who really knows the business well and therefore what makes sense to implement and what should be skipped.

When you earn enough money for a decent lifestyle, then I think this becomes the major reason for a lot of people to jump ship: you join a company but leave a manager. https://getlighthouse.com/blog/people-leave-managers-not-com...