It can, but out of the seven different Tesla owners I know, zero own a CCS charger adapter.
What I've observed is that Tesla owners (this includes my own parents) are so convinced that NACS is superior to CCS (which, to be fair, it has a lot of advantages) that they don't want to use CCS. They'll put down CCS any chance they get, and there's this weird sense of "purity" that they maintain by not using an adapter. Also the adapter costs extra money.
I'm sure that not all Tesla owners are like this, but many of them are, especially people who have owned Teslas for longer.
I don't own a CCS adapter yet, although I'm in the market for one. Not because I need it, but because it's nice to have even more options. I did drive through Eastern (edit: Central and Eastern would be more accurate) Oregon twice a couple years on the way to Idaho and back, and superchargers worked fine, but it's always nice to get more granular coverage.
Personally that notion of purity seems alien to me. I also have a CHAdeMO adapter and have needed it once (edit: nope, a few times, just remembered charging at the Nez Perce Casino in Idaho), but it is nice to have the option.
Probably mostly a 'dont need to'. CCS is annoying- you need the apps and/or to swipe a card, there is no integration in the GPS, etc.
The Supercharger is like EZpass for charging - you just plug it in -they bill you later.
Totally agree that for some reason, the most common thread among CCS charging companies is their inability to make it easy to use their chargers. I have a lot of complaints about Tesla, but the charging experience they've developed is not one of them.
Unfortunately, I have a suspicion that once NACS becomes the standard, all the current CCS companies will simply port their terrible user experience over to NACS rather than having the current experience be standard.
What I've observed is that Tesla owners (this includes my own parents) are so convinced that NACS is superior to CCS (which, to be fair, it has a lot of advantages) that they don't want to use CCS. They'll put down CCS any chance they get, and there's this weird sense of "purity" that they maintain by not using an adapter. Also the adapter costs extra money.
I'm sure that not all Tesla owners are like this, but many of them are, especially people who have owned Teslas for longer.