For young boys, it is mixed. Boys tend to be more aggressive with both parents in the workforce than those that aren't. Then again, we don't know if that aggression is a good thing. Maybe fighting for a toy in preschool, they also learn to fight for a job a little later. Daycare in this country is still in the Stone Age.
Daycare is extremely expensive.
If you have money, you can get good daycare or hire someone to take care of your children. If you don't have money, it's a challenge for the parents of young children. One thing daycare is good at is freeing parents to pursue careers. The parents had the choice to have the children or not. And I think that they should sacrifice five years off of their career to take care of their children.