Whilst I do understand that grandparents have their own lives and don’t owe anyone childcare, I think the circumstances under which we have babies nowadays are so much worse in lots of tiny ways we probably don’t recognise.
The cost of childcare, the cost of formula, the cost of living, the cost of housing - these things are the highest they’ve ever been in proportion to people’s incomes. Naturally we need to rely on grand parental support in a way previous generations maybe didn’t need to, because they could afford a babysitter or had family with kids of a similar age.
My mum talked about an under 2’s group I used to go to that was free. She’d go have breakfast with her sisters, who all had kids the same age. Even societal trends like people having fewer children, later in life, living away from family, means people don’t have the support network they used to. My mum could have relied on her sisters, or close friends, before she’d even need to think about asking her mum. She also worked part time because my dad earned enough to support us - something most families couldn’t fathom nowadays because of how expensive everything is.
It’s also a much more individualistic way of raising kids nowadays, much less communal, and it’s expensive and difficult. Think all the pressure around screen time, providing enriching and educational experiences etc.
TLDR: I think it feels so much harder when grandparents aren’t involved because so many other options to get a bit of a break aren’t available anymore. We’re having children in a completely different way and everything just got a tiny bit worse in different ways which make us more reliant on our parents than previous generations.