The author does contracting in niche topics. When your contracting domain is uncommon you have to go where the work is.
You can charge higher prices for niche work and therefore tolerate more time in between contracts. This person may be spending more time not working and with his family than the typical FTE in this arrangement, even if the jobs occasionally require them to fly somewhere for a month.
Apparently doing emergency repair work can be extremely well paid.
(His wife was fine with it, but when there's great inconvenience for the family balanced by great pay for the family, you've got to get paid)
Or... maybe he needs income to exist.
atleast that's my interpretation of it of how logic might follow if they are working in niche space, many people seem to be applying the logic onto themselves into completely standard situation, but I don't suppose that is the case here.
Hope this helps in genuinely understanding their situation, from my reading/thinking about it.
Didn’t realize it needed saying but I left the child and did the work in exchange for money I needed (still need) to feed the child.
Many people do this every day. I do it when it makes sense or the conditions require, which is to say I am a WFH contractor who sometimes works on site occasionally.