There is this theory of the good money. People tend to spend the bad money and keep the good money. When I look at myself, my btc have been sitting in my wallet with hardly any movement. Why? Because I believe that BTC will keep it's value. So yes I consider it as a store of value in the first place.
What do you do with a coin that seems to have no value, first thing you will try to get rid of it and swap it into something useful. It's the useful stuff that will become the currencies of the future. Things that are relatively stable in price, easy and cheap to use. I would but btc into this package at all.

BTC can be a store of value but it is not designed to be something to pay stuff with (scalability, transaction costs). If I had to promote BTC to people I would do it as a secure store of value in the first place.