It is better for everyone, and it does not devalue child-rearing at all.
It is better for the family:
- it has more resources
- it has more income diversification
It is better for the father:
- he doesn't have to carry the weight of income-gathering alone
It is better for the mother:
- she doesn't have to carry the weight of child-rearing alone
- if things go sour, she can maintain herself and/or the family financially
- sha has more choices in life
It is better for the child:
- they get a wider variety of experiences
- they socialize with other kids earlier, which helps in early school-life
- they learn to socialize with more adults too
- there are professionals who have seen many children, who will notice problems before the parents will
It is better for the childcare professional:
- they have another job choice, helping them pick a job they enjoy
It is good for society:
- father, mother and childcare professional can do something that matches their talents, instead of doing something suboptimal for them, thus delivering more value to society
It doesn't devalue child-rearing, it values it more, by having a professional help do it.
I'm always befuddled by that argument. I'm not devaluing plumbing work by hiring a plumber, nor am I devaluing medical work by hiring a doctor. Why would I be devaluing child-rearing by hiring a professional to help?