To be clear: When I can, I use Bitcoin to spend. Merchant adoption has little to do with store of value though and store of value will remain the most important use until we reach enough density to have a circular economy.

I've personally made a POS station for my work which enables us to accept Bitcoin over lightning for our entire menu. But the average customer here is 60 and nobody has demand for that yet. The time will come for medium of exchange but only when >30% of people value it as a store of value.