Some of my observations:
1) Kids have a great time with other kids, so don't feel bad about daycare. Having them at home full-time past the age of 2 is, I think, more about the parent than the child.
2) Sometimes kids just suck, and work can be a glorious escape.
3) School life in my culture (NZ) is still modelled like there's always one stay at home parent, which means you'll never be able to be there for every certificate, every kapa haka performance, and kids are okay about it so long as you communicate, and do get to the occasional one.
4) You can fit a lot of effective parenting into dinner table discussions and bedtime discussions
5) I'm really glad I'm a single Dad and not a single Mum because there are very few cultural expectations of me beyond working, and everyone acts like I'm amazing for just raising my kids. It's kinda insulting to both genders.
6) It's impossible to perfectly balance a 40 hour working week and family. Best you can aim for is a kind of homeostasis where work suffers for family one week and then family suffers a bit for work the next.