(Admittedly I only skimmed through the article, but) Isn't the article saying that because of the program, child care is reduced to costing $10/day, but otherwise would cost much more?
For example, in lower COL places in the US, it usually costs the range of $100/day for a nanny that works 8 hours a day, and for higher COL places (e.g. Palo Alto) it could even be say $300/day. Daycare (with groups of children) can be a bit cheaper, for sure.
But the point being, to have tax credit that matches that kind of effect, we'd need at least tax credits of $90/day/child for stay at home parents, to make sense, and including weekends too (i.e. 365 days a year).
For example, in lower COL places in the US, it usually costs the range of $100/day for a nanny that works 8 hours a day, and for higher COL places (e.g. Palo Alto) it could even be say $300/day. Daycare (with groups of children) can be a bit cheaper, for sure.
But the point being, to have tax credit that matches that kind of effect, we'd need at least tax credits of $90/day/child for stay at home parents, to make sense, and including weekends too (i.e. 365 days a year).