As an older woman, born in the late 50s I remember my own Mum staying at home until the youngest was at school. She then worked part-time, but still did all the domestic work. Once a man gets used to this situation, it is hard to persuade many to change. I recall my own Mum being bad tempered for much of my early childhood, it was always obvious to me that she didn't enjoy being at home all the time and being at everyone's beck and call (her own words at the time).
Comparing notes recently with friends from the same generation, it was extremely common for elder children to be left caring for their younger siblings and to be expected to help a lot with domestic work after school. This tended to fall much more to eldest girls rather than boys. It also impeded completing homework on time and impacted on elder children doing well at school in many families. My youngest sibling went to university and I left school at 16, in spite of getting better results at O level.
When my own children were born starting in 1985, I was quite determined not to repeat this cycle. My eldest boy has a great career and also says that he grew up without any perception that men were not equal to women. Both my children were raised with the help of paid childcare. The eldest thrived at nursery and still has good friends he met at the age of two. The youngest really didn't like nursery, so we found a good childminder instead, after which she was happy.
The man who wrote this piece would only have credibility if he had personally stayed at home and brought up all his own children. That option is probably harder than most men can imagine.