To move or not?

Hi all, throwaway account here.

Me (37m) and my Japanese wife (35) have moved to Europe a couple of years ago. We have 2 kids (4&1). My wife really misses Tokyo and dropped a few hints already that she would like to move back.

She has a masters degree and getting a job in Japan will be no problem for her at all. She already works remotely for a Tokyo based company (just a couple of hours a week though) as an accountant.

I, however, have no usable skills at all.. i’m a police officer and to be honest, it’s the only thing i’ve ever been good at in my life. I do have a bachelor’s degree in business management but that’s about it. I barely speak any Japanese as well.

I don’t know what to do.. I’m 37 and traveled alot in my life, it’s only been a couple of years since we have settled down and adapted to the “normal” life. Is it too late to start all over again?

Also our oldest (4) loves her school and friends here so much, i’m super worried that she’ll have problems adapting to a whole new environment.. also her grandparents and the rest of my family will miss their grandkids so much, that thought makes me very insecure..

I don’t know what to decide on, hopefully someone has had a similar experience and can tell me a bit about how they deal with it. Thanks!