My dad was 50 when I was born, My mum was 42.
My childhood is full of happy memories of doing stuff with my dad, going on little walks and adventures locally. He was not working full time due to some health issues, then when I was still a teen he was retired - so again, at home a lot. So yes, while he wasn't a big sporty active presence in my childhood, he was always there, always around and I would say he was a good dad. Mum was much more hands on and she was my "go to" parent, but dad did more than his fair share of child rearing - we're talking the 1970s and 1980s here, so different times and all that.
I'm not going to lie, as I got older - the teen years - I was a bit embarrassed about my dad being so old. I think in those days, people did show their age a lot more than now. He was always in comfy cardigans with white hair and used a walking stick "because of his bad legs." Everyone thought he was my granddad and I was shy and wanted to fit in and didn't speak up, so I never corrected them. I didn't like to invite friends over for tea etc as I didn't want them to see my dad.
Wasn't so bothered about my mum, she looked younger and quite a few of my friends had mums a similar age. But dad seemed so much older and just not a regular type of dad, bless him.
He died when he was 77, and he was frail and elderly for much of his last years - that's my lasting memory of him.
Weird thing is, when I think of someone who's 77 these days, I wouldn't think of it as THAT old tbh. DP's mum is that age now, for instance, and she's active and out and about and seems very young.
Anyway, that's my take on it. 50 was fine on the whole. But probably not ideal?