Yea commute + kid is the key motivation for WFH for me. My Bay Area commute is 4+ hours per day, depending on traffic. This means in order to guarantee I can be at work for my first 8AM meeting, I need to wake up around 5AM and leave the house at 5:30. My day is over at around 5PM (thankfully I don't work for a workaholic culture start-up), but this still means I'm home by 7:30-8PM most days. I'm basically driving 50% of the time I spend at work, and don't get to see my kid at all besides weekends. It really sucks.
COVID-19 has been a huge quality of life boost for me.