How would we deal with privacy in a world where crypto is used to buy everything?

We often talk about crypto being used on a daily basis to buy everything we need, from groceries to concert tickets, but wouldn't it be privacy nightmare, unless we only use privacy-by-default tokens?

Imagine you go to a grocery store and buy something with your Lightning wallet. The owner of the store and anyone having access to that transaction will know your wallet's history, including how much crypto you own. By tracing such history, they can also guess which wallets are yours, therefore knowing everything you've got.

Unless e.g. XMR is used, we're prone to have our financial life publicly available to literally anyone.

How would we deal with it? What would be the strategies to protect such privacy, if any?

The way I see it now, 99% of the available projects couldn't be used without compromising privacy. Am I deeply wrong?