Agreed, take gold for example, ETFs already provide high liquidity, everything will still be centralized because the gold needs to be stored somewhere, also gold doesn’t have a special use case for the crypto community, hence there really isn’t much use to issue such coin.
However the Xaurum team had come up with the idea of tokenisation of gold. But that gold needed to be stored somewhere too. It is safe no doubt unless a big robbery takes place.
In fact if you are looking to keep gold just buy it yourself. This is good for giving as gift and for inheritance. This is not the gold you should trade though. For that an ETF would be a better option to go for.
Whether we see more asset backed coins is speculation but it can be good for those who are not willing to directly buy the asset but hold some of it in the form of tokens. I dont think governments will nag into this unless they become suspicious, provided nobody is using them for illegal purpose. But we have seen some idiots try to do illegal stuff with crypto too and hence the crackdowns.