I followed the family tradition and had my first child at 24, as had my mum before me, and my grandmother before her.
My grandmother had a hard life in a small mining community just after the war. Not much money, very few modern conveniences and intergenerational living (there was my great-grandparents and my grandparents all living in a little house together!), I don't think there was time for a lot of navel gazing about child raising back then; I think my nanny just had the babies and did whatever was most expedient and easy. This did include smacking, leaving babies to cry in the pram at the end of the garden etc etc.
My mum had me in the seventies, she didn't go back to work until I went to school and we co-slept and she was a gentle parent. Loads of love and cuddles, few and far between smacks.
I had my first child in the late nineties, co-slept, couldn't bear him crying, breastfed him for quite a while, BLW wasn't 'a thing' but I home cooked all organic food for him (! Huh. Only to now be only able to shovel beige food into them when he slopes home), no smacking!
I have a little GC now - no co-sleeping, they did do BLW, no smacking, lots and lots of love.
None of the women in my family would dream of telling the next generation how to raise a child, I was only ever offered advice if I asked for it and I am the same with my GC's mum! Things change as research is done and science moves on. Weaning for example - i think they started weaning at 8 weeks BITD, My first son was 12 weeks, my second 20 weeks and now it's six months (or has that changed again?) I don't think that's a bad thing, it's just that we've become more educated about how the human gut works.
That was an epic post!