Just because you saw a guy with a Bitcoin shirt doesn't mean that Bitcoin is getting popular in your local community.
I have the feeling that Crypto/Bitcoin is getting more popular in the underdeveloped countries, rather than the developed countries.
Maybe you need to zoom the image, mate.
Or look at this quote:
I am also very surprised when seeing a sponshorship with Crypto.
It is not only about a person wearing the t-shirt but also the banner with Crypto that is considered as one of the sponsors of the match.
So, I am sure that crypto may be popular in the area. Or even it is not popular yet, with the banner, many more people will know about crypto and may be be curious about crypto.
It's quite strange if it's banned, but there's still an exchange market. By rule Indonesia already has a regulatory body and they have declared that crypto is legal as a commodity asset. So there is indeed still a debate on the issue of crypto. What is prohibited is as a medium of exchange for buying and selling. Because the legal currency there is rupiah.
For Indonesia, I am also from Indonesia and live in a village. I also have a T-shirt that says Bitcoin. But indeed I rarely wear it. It seems that quite a lot of indonesians already understand but they don't really show that. My friend is just one area trading and he doesn't really show himself to others.
Indeed, crypto in Indonesia is legal as a commodity asset but still illegal as a currency. But there is still debate about whether it is "haram" or not. That is why many of us that work in the crypto industry will commonly not tell people around us directly or clearly. I am also in this situation, people in my area may not know that I am working in the crypto industry and I also don't know if there are other people who are the same or not with me in my area. This is because of the different opinions about crypto here and still so many people having debates about this. So, it is better to avoid any debate.
But sometimes, I feel smiley and happy when going somewhere and finding other people in several times holding their phones and watching them with crypto exchanges and graphs. This means that actually, crypto has been very popular among us, but most of us will not show it clearly to the public.