For now, I simply trade them on an exchange an convert it to fiat. But trust me, maybe in 10 years time, they'll be more use case for bitcoin. BTW, there are online stores that actually accept bitcoin as a means of payment (
see here). So you don't really have to make use of it in a physical store. However, it's only a matter of time.
Same here, because right now the number of places accepting bitcoin as payment is still limited. And in my country, I still do not feel that it is fully into crypto. Well, at least I already have my experience on it. At least In the future, I won't get too much curious.