The main selling point to online shops would have to be a substantial reduction in fees compared to credit cards / PayPal. Most shops don't care about censorship since they wouldn't be affected anyway.
Yeah I don’t see that happening anymore. Crypto is always going to have fees and off-ramps, although I do think it’s helped create competition in the transfer space.
The real way crypto will work or not work is programmable money. If that works that will be huge, if it doesn’t then maybe someone will pick it back up 50 years from now.
The problem in this specific space is that many people don't want their payments to a NSFW company to be associated with them. Most blockchains makes this trivially traceable by design.
The ones that don't (eg Tornado cash) end up being used for money laundering so on/off ramps won't touch them. We'll see what happens with the ZK-based chains, but this seems a systematic problem that is difficult to fix.
Someone is going to mention flashbots or something. “See this specific example proves…”