The reality is that there are still many businesses and shops that don't accept anything else but cash. Food markets are the prime example. Even credit cards aren't always practical, so people have to carry cash with them.
I think that depends on where you live. Here in my country in the EU I can pay everywhere without cash, most stores even prefer it, especially since Corona. Additionally, some countries
have even announced that they will be completely cashless by 2025, so I'm sure many will follow suit:
How many Swedes use cash?
In ten years the proportion of Swedes using cash has fallen from 39 to 9 per cent, according to Sweden’s central bank, the Riksbank. The use of cash is mostly limited to making small payments and by the elderly. In shops and cafés, it is much more common to find the sign ‘Card only’ or ‘Cashfree’ than ‘Cash only’ as in many other countries.
Of course, this has little to do with increasing crypto adoption for the time being. However, the more people get used to cashless payments, the more likely it is that alternative payment methods like Bitcoin will be accepted.