I don't think bitcoin is fit for this situation. transfer fee would be too high for a small amount of money, other kind of altcoins would be great.
anyway, things are going wild there. happy to see cryptocurrency's being applied
If you'll be doing transactions below $100 I can't recommend you using bitcoin as a payment method but if you'll be doing big transactions on mall specially on a shopping trip bitcoin would really benefit you because sometimes people tend to exceed their credit cards limit for a transaction so bitcoin would be beneficial for that.
Nevertheless it's a great move towards crypto adoption. If you happen to have just crypto no cash than it'd be cheaper and easier to pay in crypto than to convert it to fiat to pay.
Transaction fees can be lowered using alts, lightning network or internal transfer like that within coinbase mail.