well I aint worried about what people will or wont use..
I just know I had a chance to load up on bitcoin, and I procrastinated and missed the boat....
I am not making that mistake again..
I worry because if nobody spends it then the economy behind it dies and much of its potential dies along with it. For instance, why use it to transfer funds internationally when Western Union is now cheaper? How can it be a "bank for the unbanked" when banks are now cheaper? These "little guys" are crucial to the infrastructure. Without them the economy of scale collapses and bitcoin is no longer viable.
Coinbase is a dirty man. Have you tried bitpay wallet or bitpay card? Send that BTC to a wallet you control and then get what you want.
They are dirty, but the real issue is that bitcoin's creators never expected it to become this popular. If they did they would have made a network that can handle bigger data packets.