I didn’t come out until I was 26, and it went badly.
My dad sat in judgement and was very ashamed of me. He did change his mind much later but still said “I don’t like your lifestyle”.
Mum never changed and did not like it all.
Both of them are dead now, and… I don’t particularly miss them. I feel strange reading about how other people appreciate their parents.
My partner’s mum considers me her 2nd son. She’s been so accepting of me, as has her family. Same with my cousins, who my dad decided not to tell. When I did tell them after he died, they were mostly very welcoming.
I stayed home from high school one day in the 90s and told my mom I was gay and suicidal. My parents then proceeded to forget about the suicidal bit and freak out about me being gay. They took me to a shrink to give me meds to make me not gay. I went back into the closet but slowly came out gradually. Things slowly, eventually, got better. Especially for me after I went to college and actually met other gay people. I think seeing gays in mainstream media really helped my parents come around. Twenty years later, I took my mom to pride.