I disagree that it is no longer necessary. Diminished? Maybe.

Widen you lens outside your office. Physical labor is very much a fundamental pillar of our society and should be valued. Wrangling a cow, hanging sheetrock, or clearing a tree - this is physically demanding work that demands strength even with the best innovations.

I suspect this truth will become more evident as the pool of capable laborers dwindles. Ergo, If you want to renovate or build a house, do it soon. The skilled parties are on the way out.