> kitchens don’t have 220V outlets generally

I'm from the US. Every home I've lived in (9) has had at least one or more 240V 30A circuits in the kitchen, my current home has 2 and it was built in the 80s so not exactly a modern build. There usually aren't a lot of outlets, as things like built-in ovens and ranges are often hardwired and not on a plug. Though the stand-alone oven/range units do often have a plug, but you don't normally see it unless you're swapping out units. They'll usually have a NEMA 14-30 or 10-30.

It cost me $400 to have an electrician instal a 220V NEMA plug in my home.

Granted, it was an easy instal - unfinished, small basement giving easy access to the kitchen and 20 feet of 50 A cable.

A one-story house with an unfinished basement makes it sooo easy to do a lot of common home upgrades. I'm jealous, everything around me is just slab-style houses so it can be a pain to do anything like plumbing work without just resorting to having stuff in the attic.