Like buying a monthly subscription for a tool like, say, Icy.tools, is so much faster when you can pay directly with metamask. No accounts, no logins, no credit card screens.
The catch, of course, is that for the tech to get adopted by the mainstream, you will need way more regulations and safeguards. Maybe KYC on wallets (which means creating accounts/logins), maybe the ability to reverse transactions to reduce fraud.
All of these regulations might introduce enough friction that the final experience doesn't differ much from current legacy systems.
But a built-in browser wallet that makes payments (including micropayments) easier is really needed. It's the only antidote to our current advertising dependent model of the web.
No sign-up flow, no emails, no commitment. You just tap login and you have an account. One more tap and you've paid.
Plus other benefits like effectively free micro-transactions as small as thousands of a penny at a transaction rate in tens of milliseconds, for some chains (e.g. Solana w/Phantom or SolFlare browser extension).
All this adds up to being able to try, pay, assess, and "logout" of any completely novel (to you) service/site faster than a WSJ article page can load.
The effortless of the user experience doesn't translate well to words. Getting use to this frictionless use of compatable web apps is an experience qualitatively similar to browsing the web with an ad blocker. You can't go back. Going back feels broken, messy, slow, and outright aggravating.
Which is why I said that the tech really needs a lot of improvements. But the core idea of a browser wallet that takes care of logins and payments is really powerful and might just be crypto’s killer app