It’s hard to really have that argument with people, very personal. But I definitely think at least in the first two or three years, it’s crazy to leave your kid in daycare for 8+ hours a day. Then add to that this concept of “sleep training”, where you train your kid to sleep by themselves before they’re old enough to know the difference . . . man, the bond between parent and child gets more and more tenuous . . .
Even past that age I don't think kids should be raised by commercial strangers. I don't know if I'm typical, but I can remember back fairly accurately, in spotty instances, to when I was 2 and 3 years old. I was with my 24/7 stay-at-home mom then, as the vast majority of kids were. I cannot imagine being without her as a 3- or 4-year old. Maybe it would have been different than I estimate, but kids need their moms for at least the first decade, I think.
After starting school (we walked) it was such a comforting, secure feeling knowing that the "fort" was being manned at home, and any time we went home or stayed home sick, there was a ready mother to care for us.