My mum went back to work when I was 11, just starting secondary school. My younger DB & DSis (twins) had just started infants.
So suddenly an awful lot fell to me. School pickups, making tea, taking washing in, watering/checking small livestock, I hated it. I missed her terribly. My younger brother & sister's needs were obviously more important and I would barely see her before bedtime.
She never seemed to be there for me in quite the same way. I was keen on a lot of different sports but could no longer do the after school coaching/ training and lost my place in the 3 teams I had played in.
The family dynamic changed completely and there was a great deal of unhappiness. Dad withdrew, she was exhausted.
I feel lucky. I had my DD at 41 and was at a point in my career where i was financially independent with good contacts and able to please myself about how much work i did and how regularly I took it on.
My DH, whose mum was also at home for most of his childhood until his dad died in his mid teens, supported me in my wish to be largely at home for DD.
I'm very pleased about how it's worked out. I know DD appreciates it - she has friends with both parents working, so hears their experiences and views too.