Stock Market Trading and Operations Cut-off

I don't understand why many services around the world still don't trust Bitcoins and other cryptocurrencies? After all, money still comes to the store, even if the cryptocurrency exchange rate drops. In any case, the store receives an equivalent amount of payment for the product. I've been trading for a long time, studying services like https://fbs.com/trading, but I continue to see disappointing news. I hope this issue won't last too long because I had high hopes for the British market. I'll probably subscribe to their news on some paid service to instantly see the UK's first steps towards cryptocurrency.