Many builders are mounting electrical equipment touching the floor or resting upon the floor.
I watched a few youtubers who had water leaks and the floor was partially covered with water.
I help people fix condos that had water leaks all over the floor. Everything touching the floor was ruined.
This made impressions upon me. As water leaks can happen.
In my habitat everything electrical is 2 inches off the floor. Not perfect but some insurance.