Once you’re spending enough time with your children to cover the basics, any additional time you spend with them has no impact whatsoever.
In fact, some of the hours you spend with your children can even be harmful, for example when you’re stressed, tired, or feeling guilty or anxious.
Nowadays we all somehow assume that parents need to be heavily involved with their children for them to succeed. Especially their mothers, driven by the idea that there’s something special about the way mothers interact with their children. So women everywhere feel guilty that they don’t spend enough time with their children.
But currently, both parents are already more involved with their children than ever before, despite the pressures of work. So much so that many working mothers now spend more hours actively supervising their children than stay-at-home mothers did a generation ago.