My parents and my eldest brother fell out over 7 years ago (long story, no chance of it being resolved). My 14yo nephew has been going round to see my parents for the past year or so, my brother and SIL know nothing about it, I've been wondering for months if I should tell them
Sometimes I think I should mind my own business and keep out of it but my brother and SIL will eventually find out, they'll know that mum and dad will have told me and I think they'll be really angry with me for not telling them
If this was your child, would you want me to tell you or keep out of it?