Building companies optimize for profit which is why they have a good incentive to build things that are in short supply. They build whatever the customer buys.

On top of that, a daycare isn't a type of building, it's a thing you put in the same sort of commercial building you use for any generic purpose.

The requirements are nothing but a type of tax whose revenue is allocated to some de facto government program. But taxes on new development are asinine because they inherently get passed on as higher rents for humans and businesses, and the latter then have to pass them on as higher prices -- or can't afford them and go out of business, which is how you get the high street full of vape shops.