I was recently obliged for the first time to drop my son off at school by car. It took 50% longer than cycling. I can't understate the temporal dimension of using a car. When dropping and picking up a kid at school...etc etc

A kid goes to daycare for what 3 years? If you have 2-3 kids and you don't wait 10 years in between these are just 10 years of your life.

This depends very much on local circumstances. In our local daycare in Amsterdam, probably 3/4 of dropping and picking up was done by bike. Even at that level, using a car is often slower due to tightness of parking space.

Eh. For all my kids' daycare career I dropped them off by bike. Given the distance and route it was faster than driving. It really depends on the distances involved, road layout, cycling infrastructure, geography, weather, etc... Not many universals here.