When crypto becomes a common way of payment, how will the prices look?

Let's say it's 2024

0.00000087 BTC for a beer?

0.000078 ETH for this burger?

0.007 DOT for those fries?

Isn't it something preventing it from becoming a common way of payment, since people like round and clear numbers?

Also, crypto is so volatile, how will prices for everyday things will look when they change all the time?

Also, salaries. Even if fiat currency disappears, the market will still be volatile. So how will salaries be paid? One day the salary is hardly enough to feed the family and the next it's Lambo every month?