Should I come out to my family?

So I’m 16 and I’m bisexual and my family doesn’t know ,and I’m sure that if I tell them they might be mad about it. I mean I’ve dated a girl before but it was only once, and she came over and she knew that my family didn’t know so she told my family that we were really close almost like sisters she did that so my parents wouldn’t care if we slept in the same bed (nothing happened) but I kinda want to tell my family I’m just scared of what they will say and I’m thinking I should just not say anything and keep to myself and I shouldn’t tell them if I have a girlfriend but tell them when I get a boyfriend.