It's an apt comparison, and obviously there has been movement (eg the EU) to push them onto usb, but I think cars are a slightly different context than laptops/phones where there us much more of a social incentive to standardize early, given the high cost, low turnover, lower availability of fuel/energy during transport with competing plugs, etc.

EU managed to get Tesla to standardise onto a common plug (CCS2) too, but unlike with USB-C it Tesla are happy to not roll it out globally.