Even though I have a Leaf(actually 2) with Chadmo I do agree with Sage, Chadmo is Betamax and CSS is VHS. Sure there might have been advantages to Chadmo just as there were to Betamax but CSS has won the war and we Chadmo people need to realize that. Does it suck for those who purchased a vehicle with Chadmo and really need QC, sure but as early adopters changing standards is just part of the game, it's life. The same thing happened to those who purchased Betamax VCRs, sure you might have had a nice VCR and you could continue to use it as long as it lasted but good luck finding your favorite movie on Beta, there just wasn't the market for distributors to carry prerecorded Beta tapes.
When I purchased my first Leaf back in '14 I admit I didn't know the difference between CSS and Chadmo or if one would win out over the other but the more I got into it, I could see the writing on the wall for Chadmo, owning a Leaf I'd have another Betamax on my hands. Now luckily I'm not reliant on QC'ing to get around and in my older very lacking QC market I still probably see more Chadmo's than CSS but I personally don't think anyone should be forced to continue to install Chadmo if they don't want to or there isn't a market for it, for the most part, we are a free-market country.
Unlike some I'm sure, I do believe the government should be involved in forcing standards, at least up to the point when something new gets wide acceptance, if it weren't for standards each cell phone would still be using a different charging plug, heck even the same mfg. would use different plugs for different models they sold, ala Samsung who back in the day seemed to have a different plug for every model phone they sold, it was very maddening. Of course, Samsung was happy to sell you a new charger with each phone, more money for them but it wasn't good for the consumers or landfills. I still wonder how Apple got away with a phone that used a different plug standard than everyone else and always has but I'm actually kind of happy to see Europe may be putting an end to that, forcing them to use the standard USBC in the near future, of course, I bet they will continue to use their non-standard Lightning connector in the good-ole-USA as our government has too many special interests to force Apple to standardize with everyone else. BTW I own an Apple and like it but aren't happy they use a different plug than the other phones in my household, requiring me to double up my purchases!
I for one kind of look forward to the day when we have only one QC standard(well except for the Elephant in the room, Tesla) which like Apple I don't see how they get away with a non-conforming standard even if it may be better than the rest but it is what it is. It would have been nice if Tesla let other people use their standard but I know why they didn't so I guess we'll be destined to 2 QCs and L1/L2 standards but at least not 3 QC standards and yes I know Tesla has a J1772 adapter to allow them to use everyone else's L1/L2 standard so like my kids, what's yours is yours and what's mine is yours