Am I wrong for not being out?

I’ll be 31 in a few days and I’ve known I was bi since probably fifth grade. I’ve had relationships with men and women. I’ve been with a man for the past 7 years and we have two children together. Not until recently have I started feeling guilty that I’ve never told my family. My sister knows, I told her about 10 years ago but my parents and other siblings have no idea. I guess it doesn’t matter since I’m with a man but something inside me is making me feel like I’m not being true to myself for “hiding” it still. Opinions?