Yes, most families. Just for ducks, here's mine. Mother's first cousin was gay.  On my father's side, one of my first cousin's was gay and died of AIDS. In my workplace over the years (35) I had eight gay men and ten lesbians as colleagues (they all belonged to Catholic families). Our daughter's first boyfriend was the adopted son of a lesbian couple. In my husband's family, (huge Irish Catholic group) there are quite a few gays and lesbians and nobody gets their knickers in a twist. In my parish, there are a number of gay couples, including one couple who has adopted four special needs kids. I don't go by statistics, since they often lie...I go by lived experience - many gays and lesbians to this day keep their reality private for fear of losing a job or being socially rejected...so yes, most families...and the really sad thing is when the family rejects their gay son or daughter.