And plenty of parents are not good with children 24.7. I have never wanted to be with mine all day. It's too strenuous and dull and it doesn't suit me nor many women and men. A few hours a day is great, long enough to cuddle, talk, bond, breastfeed, if you're doing that, chat, but allowing yourself time to work and do other things.
I certainly found when I was 21 and just married over a year and commuting into the city 24 years ago leaving the 2 week year old and expressing milk hard but she then got the chance at 2 weeks to bond with the daily nanny who stayed 10 years and to ensure no sexist patterns were established at home as her father was often home first as much as I was.
When the 5 children ask me whom I love best (silly question, genuinely love them the same) I say love isn't something you have in limited quantities and share out. It's the same with babies. A baby can love and bond with a father, mother and nanny (or granny or in our case 3 much older siblings) just as my father with his dementia bonded to those who were caring for him changing his pads etc day in day out.
You give them a gift by allowing them to bond with more than one person. You benefit them by allowing them to see mother isn't God but just someone who might often be wrong and frequently does not know best.
But even so I like babies at home with care at home. I think that's a lovely dynamic if it can be achieved and worth the price paid and it's cheaper any way if you have a whole load of children as we did.