I used to buy a coffee from time to time with bitcoin.
But I can't use bitcoin buying a coffee now, because the fee is so high, if I keep 0.0001 fee like before, it would take days for the transaction to get confirmed, I've got a transaction which took 11 days to get the 1st confirmation last month.
It's not cost-effective any more to buy (I mean both online and buying face to face) thing via bitcoin. And this is why I quit buy coffee with bitcoin.
If that's the case then its not really ideal to use bitcoin on buying coffee since the fee would really add up on the cost of coffee and in fact we could able to use our local fiat on this time and pass with bitcoin.Lucky for you that you can able to buy coffee with your bitcoin and there are already shops accepts bitcoin.Better to keep first your bitcoin than actively spend it on small things.