I also know many people who do a lot to very much themselves. Up to a carpenter who makes all the doors himself before installing them. But: that takes time.
In my opinion, far more people outside the metropolitan area do this than many forum members think. They just aren’t active in forums. And above all, they haven’t moved in after a maximum of 6 months.
Those who, for example, do not want to build forever for financial reasons, or who do not feel physically or mentally capable of doing a lot themselves, just have to realize that in time. And of course pay for it. I don’t find any of the approaches reprehensible, but at least in part the path of extensive own effort is more dangerous. When you are in the middle of it and realize that you can no longer manage physically or mentally, when there is no end in sight... that can (but does not have to) end badly.
Egon, we have no children and are now much slower than during the "real" construction phase. Once you’re in the house, the drive is gone.
Oh yes, on the subject, the day has 24 hours. To the 8 hours of scheduled work time comes (for me) a half hour lunch break, just under half an hour commute from home to work, in rush hour nearly an hour from work to the construction site, and from the construction site another half hour home to bed. When you then subtract times for nighttime rest (of the neighbors ), the question eventually arises whether the daily travel distances are worth it or whether it is better to work longer hours in the "real" job Monday to Thursday and have a few more uninterrupted hours on Friday.