When I was growing up, these seemed to be ubiquitous and I never liked them. They seemed overcomplicated for the purpose, and created a gross and smelly area under the sink that needed more cleaning.
I haven’t had one in years, as a simple sink mesh does the same job. But I don’t really know how other people are. Are under sink garbage disposals still common, and commonly actually used by people here?
There are very few things that make me proud to be American, but I do love when people from other countries are horrified by “normal” American stuff.
It is quite convenient, though, and better than food going to a landfill. (although composting is still preferable)