I wouldn't because I get more perks using other methods like my Cash App card which gives me $1 back every cup of coffee I buy. If there was a prepaid card you could fund directly with BTC that offered a similar perk, I would consider it.

Aside from that, the transaction is easy peasy using your coffee card (i.e. Starbucks Card). If I'll use btc for smaller transactions, the fee might not be reasonable enough to use crypto payment method. Aside from the fact that you need to wait for the confirmation of your transaction. Maybe, I'll use this method if I'm traveling and crypto payment is one the easiest option to take.

Depend on the fees itself and currently indeed the transactions fees might be made some difference because if the fees lower i think everybody are willing to buy some coffee use bitcoin but if the transactions equal to coffee price or higher i don't think people will buy it

I for one will not use my precious Bitcoin to buy coffee. I am keeping my satoshis to build up my  Bitcoin holdings and I will not use it as a payment method. I keep them as a future investment.

Definitely not. I use what's the most convenient for me in local situations, and that's fiat. Bitcoin is too expensive and inconvenient to use. I don't know why people keep forcing themselves to use it for coffee payments.

Another point of importance is that in some countries spending Bitcoin (or any other crypto currency) is considered to be a taxable event, which adds more problems than it solves.

Bitcoin evolved into something that represents gold and no longer a viable small payment network it once was. No scaling = limiting usage so we have to accept that. I wish it was different, but lets hope LN will give us that.

To my knowledge, a lot of companies are very quick to exchange their Bitcoin because of the exact reason you mention. Maybe, at best, they could use the drops in the fiat value to write off some of their taxes in the form of capital losses, but I can't think of a lot of companies that want to write off their revenue as a capital loss. I'm pretty sure that Steam/Valve had this exact issue when they began to accept Bitcoin a year ago, where it kept going higher and then it started to crash and they (very rapidly) cut their acceptance for Bitcoin. I almost guarantee that they were seeing this as a loss of revenue, and it probably hurt them more than it would most other companies due to the fact that they still have to forward the money earned to developers for games. It squeezed their margins, and that wasn't something they could regularly deal with, I guess.

As for OP's question, I don't drink coffee, so I can't say that I would be interested in purchasing coffee using Bitcoin.

It is good to keep holding then to use because we know value of bitcoin is increasing with the passage of time so not good to use for purchasing something like this, coffee we can buy with using small amount of cash then it is not good to use our precious saving and investment for the sake of anything so my decision is holding instead of buying coffee.

I agree. It is not worth to pay the fee to buy a cup of coffee and just having a hard time to process it if you have an amount on your pocket. Better to used it on more worth things or even invest it or just keep it on wallet for it to grow while the price is pumping.

If the coffee was good

In all honestly though, yea, I would. Currently. And I probably would regardless of the price.

I have a certain reserve of Bitcoin that I call my "MOON" bitcoins. Essentially, the Bitcoins I pretty much want to hold onto no matter what.

And then I have a fund which is produced solely from the work I do. That, I'm more willing to pull from for things like daily items. I also think it's beneficial for the BTC economy in general, when Bitcoin is used to buy staples. I mean, the digital currency was invented primarily as a way to pay for things, not a value store.