What do these people supposedly buy that is worth $30 and they can't buy with fiat?

Leaving aside specific cases, regularly paying a $10 fee to buy items worth $30 is not very smart, and if we take into account that you are doing it with a financial asset that tends to appreciate greatly, unlike fiat whose depreciation is constant, it borders on being stupid.

Today Bitcoin is more a store of value than a currency, and everything indicates that it will continue to be so in the future, so it is better not to trust that in the future you will be able to make payments of $1 with the minimum fee that will be confirmed fast.

Try to buy $30 of gold and then sell it to buy something or pay directly with it where they accept it and come back here and tell us how much they have charged you in fees.