Well, the same mindset you have there with "What's wrong with just going to work...", you should also apply to the opposite point of view: "What's wrong with wanting to change jobs every couple of years?".

There's nothing inherently wrong with either option.

You might not understand, but I think it would be worth to exercise empathy and try to understand it, instead of passing judgement. The OP is doing precisely this, not passing judgement and asking for help to exercise empathy.