I'm still uncomfortable with BTC path/future. I mean, its main purpose is to serve as a currency, however, it is now being used as store of value.

As we all know, it's much cheaper to to buy something with credit card (including currency conversion) than to buy with BTC and pay ridiculous high transaction fees. If this continues, how will BTC maintain its value if it lost its main purpose (serving as currency?) Or will it just become a collector's coin (something to brag about to the rich in the future having a BTC in your wallet?)

What if an altcoin pop-up with actual developers that can solve all of BTC issues? Then what will happen to BTC? This is my worry.

I mean seriously, 12 years now and BTC still can't fix its own issues? Really?