Even though this move by Elon Musk and Tesla will further lead to Bitcoin adoption but I am thinking of something.. Imagine buying a Tesla for maybe 0.4btc and by the end of the year, that BTC worths over $100k, what will you do? I think this is the singular reason some people may still prefer to buy with fiat currency. I remember a story of someone that bought pizza for 10,000BTC or so. Imagine the worth today.
Nice piece here buddy
Quite agree with your views and using fiat looks to be the better option