We do see it - patreon, buymeacoffee, donations of various kinds. Games with microtransactions. Shareware has just evolved.

I think society has evolved to the point where people want to make as much money as possible, so instead of shareware the person creating it charges money.

Shareware kind of gave way to OSS. Software is both shared and installed very differently from when people passed around cloned floppies or even DVDs.