Privacy coin will be great but we all know how scrutinized they are, even governments are pushing for privacy coins delisting it speaks a lot that there will be confrontation from the government.
As of now it seems governments are pushing stablecoin, japan is also pushing one called JPYC despite US with its massive USD domination in the stablecoin sector.
For now I think it's gonna be either BTC or stablecoin. The two will be the most utilized. Unless somehow governments support privacy coin.
Governments will never support privacy coins. They will force the use of CBDCs through the nose. Perhaps, people will make heavy use of privacy coins once cash is phased out of existence? It's a wild guess, since we can't predict what will happen in the future.
Worse-case scenario, all of the world's governments (or most of them) "ban" privacy coins, scaring away investors and traders alike. If that happens, adoption for privacy coins will be low. Without cash, I don't see any other alternative than privacy coins for people to enjoy true freedom and anonymity. We'll see what happens in the long run.