This is also a problem in the UK. When my children were young, it made little economic sense for my wife to continue working - practically all of her salary wou

This is also a problem in the UK. When my children were young, it made little economic sense for my wife to continue working - practically all of her salary would have gone on childcare. If childcare was made tax-deductible, my wife could have returned to work earlier. This would have meant our household could have contributed a far larger wedge in taxes to support society.