Actually i agree, I don't think there is a problem in giving Bitcoin a choice as one of the payment options that we offer to service workers like that.
But I don't think we can apply this and we do it anywhere because if it's in a place that still considers Bitcoin to be illegal then it's too risky for us and the people we give it to.
Apart from that, we actually have to be careful about offering Bitcoin to just anyone because we are afraid that they will have malicious intentions towards us and will threaten ourselves after they find out we are Bitcoin adopters.
Then this cannot be done by everyone because we know for ourselves that some people seem to prefer to collect and hold their Bitcoins compared to using them as a transaction tool, right?.
of course, you won't ask such question if you know bitcoin and other crypto are illegal in your area. however, if all is ok, if you have your own business, you can post it outside your shop that you are accepting btc. so people will know that you are accepting this currency and some of them will be curious about it. who knows, someone will ask you to teach them how to transact with btc?