When you have a baby these days, you get ?250 in a Child Trust Fund. How about if they raised that to, for example, ?1000, for parents who have attended a course of parenting classes?
Surely basic parenting knowledge and skills can be taught/learnt like any other subject. Obviously it'd cost a certain amount in tax but I suspect it'd make everyone a lot better off in terms of quality of life and would be a tax worth paying.
Or how about if the Childlessness Tax was abolished altogether?