This is the point missed by many. The trades are in high demand, right now, because of a labor shortage and demand from upper-middle class individuals without any DIY skills. A generation or two of pushing kids into college, and an almost disparaging view of 'getting your hands dirty' has built this perfect storm.

However, besides a few trades that use unions/licensure/apprenticeship as an artificial supply limit, most trades are only limited by a willingness to do the work. A few decades ago, trade work was much less expensive, because supply was higher and many did their own DIY, which limited what prices the market would tolerate.

> Will everyone just pay each other to do a bunch of handy work for each other?

May not be as crazy of a thought as it seems on the surface. There are many different types of not-easily-roboticized manual work, doable by people of varying skillsets and physical abilities, which will continue to hold value due to our basic physiological needs.

The lower bound, or 'floor', of this value is not going to sink lower than group consensus among wide swaths of the population allows.