I think it should not really be regards to government, but banks instead. I feel like if banks start doing it, which is quite possible, that will change things. Imagine opening up your bank app and buying bitcoin and storing there, it would be insane. By the way, I am not even saying that they should buy it beforehand or anything, they can work EXACTLY like exchanges, so you need to put up the bitcoin first to be credited. Considering they are really strong on security, because they have billions and billions, that means we are talking about not having that much trouble with the security issue neither.