Good points, but I do think it ignores the flexibility aspect. When I had my own business I could take some time in the middle of the day to be with my kids if they were sick ot needed help on something. I would make up the time in the evening. It’s not that I worked less hours, but I had more say which hours I worked. I could do my best tasks at 4am if thats when I was most productive.
My 8–5 job now lacks that flexibility. Sure its nice to have paid leave, you don’t really get that self employed… but I travelled less and saw my kids more. Only reason I see them now in my job is we have one car.