If you want more kids work on affordable housing, decreased costs for healthcare, decreased costs for college, and decreased costs for childcare.
Inflation happens when the money supply grows faster than the productive capacity of a country. And few, if any, things are more important for productive capacity than a young workforce.
Or think about it from the other direction. Suppose the country was "fiscally responsible" and had lots of money to support retirees. But if there is nobody of working age, then those retirees will be spending lots of money on their needs and wants. Without workers to supply those needs and wants the prices will get quickly bid up. Aka inflation.
Meaning daycare? IIRC, they are already tax deductible to a point (see: Dependent Care FSA).
But it's interesting and kind of depressing that the solution is always to make it easier and cheaper to shove kids into institutional settings, because the assumption that the gaping maw of capitalism must consume a maximum amount of every adults' time and energy is unquestioned.
Institutionalizing childcare is the best for capitalism, because it captures the parents' time with paid work and creates a product to suck up their money with. Too bad about the kids, though. Capitalism comes first.
At a cap of $5,000, the dependent care FSA does not even cover 2 months of daycare for my daughter, and the tax savings amount to less than two weeks of care.