Stress is definitely higher with public transport. THe challenge is that time is the constraint. Parents need to drop off their kids and be in their office by a certain time and do the reverse in the evenings. If you are proposing public transport as the solution, then that eats time thereby creating stress as everyone worries to reach their destinations quickly.

You can be frustrated by the comment but please try to grow empathy for parents. Raising kids takes a lot out of you. You are juggling n number of things and time becomes a major constraint. So unless everything (home, school, office) is nearby within walking distance, the number of viable solutions beyond cars go dwindle down significantly.