Therefore, there is a huge chance that COVID-19 would drastically decrease the physical gambling..
It depends on the overall status of the virus in a certain country. Obviously, for those countries wherein the situation is
"under control", the usual environment will still be the same or let's say the gambling activity on physical casinos will just decrease by only low percentage.
And besides, in most of the cases, these physical casinos are not accessible easily to anyone. With or without this global issue of the virus, people can't just enter if they wish. And for big casinos that concerned about the virus, surely there will be strict implementation of anyone who will enter like implemented on other establishments as well.
...somehow can change gamblers' physical gambling onto digital one. And with that, it can somehow increase the community of overall cryptocurrency.[/b]
Online gambling doesn't mean it's all about crypto.
Some physical casinos do have an online gambling site partner and affiliates or even they haven't, I see these gamblers who regularly play on physical casinos will shift instead into fiat-based online gambling.