Breastfeeding doesn't move money around, but formula does; things like that.
Cooking your own meal doesn't raise GDP beyond the cost of supplies, but door-dashing from a restaurant does.
That's not the claim I'm making. Someone entering the workforce has tax implications for a local government far beyond their individual tax receipts and will increase their future earning potential.
Again I didn't claim that. The tradeoff is generating some percentage of X benefit in economic activity vs some much lower percentage of X while X is also much larger.