A big part of Ham radio today is what are known as POTA (Parks on the Air) activations where hams go to different parks to make contacts with other hams. These are often low-power transmissions (Known as QRP, or 10W or less). I think a big driver of this is the fact that our cities have become so noisy.
People separate from the crowd so they can be better identified and then self-organize into their own network.
Environments shaping our communication, people choosing new interactions in response to environment changing.