Well-being is one possible measure of morality. What encompasses well-being? There are many factors.
“I shouldn’t have kids because I can’t afford to send them to college” does not seem to be a valid reason to deny someone existence.
But I have a different philosophy.
I don’t see scarcity. I see plenty of room on the planet. People want to have kids? They should have kids. The more the better. Give THEM the opportunity to sort things out for THEIR generation rather than me choosing to deny them the opportunity thanks to my bad choices in life.