If you spend your time educating yourself and working, you don’t have time to reproduce and raise children. Thus declining birth rates
Reality isn’t an incentive narrative. Go research declining birth rates and female education attainment and you will find charts that make it clear
The charts you refer to show an environment where the responsibility for care work is heavily skewed to the detriment of women. If men took up a bigger part of raising children, it would be easier for couples to do that. But the vast majority of men don't.
I wholeheartedly recommend you buying a new keyboard, by the way.