Bitcoin adoption still has a long way to, but I'm sure that there will be a time that a huge percentage of all the people worldwide will accept Bitcoin as an alternative mode of payment. There are already websites who are accepting Bitcoin and more of them will accept not only Bitcoin, but maybe other coins as well.
On the other hand, there are some who doesn't want to accept Bitcoin especially some establishments because of how volatile it is.
They realize BTC is not going away so its best to just adopt it as well, after all, they can benefit it BTC's growth also.
These establishments could come and go if they like. Someone may figure out soon that whenever the market is bullish, the business can accept BTC but if it's a bear market then cash transactions only. I have had this in mind recently I would just try to lend some BTC but only in the bull run and then lend stablecoin in the bear market.