Why does it seem like there are never any leftist parents?

Maybe it's just my personal experience, but despite living in a not super conservative, but also not entirely liberal area, I feel like any parents I see in real life are probably conservatives, and some liberals but not as many, and in media it's a relatively even mix of both, I think.

On my dad's side the family is mostly conservatives except for my dad and his dad who stopped being one after Nixon. And on my mom's side its entirely conservative, my mom just happened to end up becoming a liberal, not sure how. So its basically a coincidence that I ended up being raised liberal and not ultra-religious conservative. And now I've ended up becoming a borderline Anarchist.

Anyway, last summer I went to Europe and met some new friends from various countries, and in a conversation with one girl, she talked about how her dad grew up in the 80s as a leftist, and he was pretty present in the trans rights movement even back then, and having multiple trans and drag queen friends. And that just seemed surprising to me, I know of course radically left people have existed pretty much forever, but the idea of having radically left parents feels like new or foreign concept, It always feels like lefties are essentially made through having a harmfully conservative household, and basically rejecting that abuse in adulthood.