Now I was fortunate enough to have enough money (and a powerful social system) to be able to do it. I understand I am very lucky.
And data sciences are super cool when you come from computer sciences. I definitely feel I'm learning something totally new. Data sciences is very far away from computers when you think about it...
On my side, it'll mean start anew in an work environment I like, doing stuff where there's less customer management involved (so, for my personality, that means much less stress). I like customer relationship though, but not when it means: "tell the very unhappy customers that the crappy solution we sold them is the one they love (and explain that this budget overrun is under control)". I much prefer the relationship when it is : "ok customer, I think I understand your needs, let's imagine a solution together".