Why not? I regularly buy products and services online with crypto and it works quite well, usually a better experience than with a credit card.
There are plenty of chains that can confirm transactions in a couple seconds, and if you're concerned with volatility, just use USDC/USDT. There are crypto payment processors that handle all of this and allow payment across a range of chains and handle the volatility so that the merchant doesn't need to worry about anything crypto and just receives fiat.
There are plenty of chains that can confirm transactions in a couple seconds, and if you're concerned with volatility, just use USDC/USDT. There are crypto payment processors that handle all of this and allow payment across a range of chains and handle the volatility so that the merchant doesn't need to worry about anything crypto and just receives fiat.