The government won't immediately adopt the concept of Bitcoin since it grants everyone financial freedom, whereas the government is only interested in the meager revenue it can raise through taxes.
Crude oil and gold are traditional trading goods that are still in use, but the concept of Bitcoin has eliminated the notion of gold investment for young people since they now perceive it as being safer than investing in actual assets like gold.
You could argue that. but the main reason as to why these authorities aren't keen on allowing bitcoin to wander around their territories is because they can't control it. There are no ways for the government to track, detect, and apprehend people in the bitcoin network, and this is their main argument. You can also say that they don't want bitcoin to deface and dethrone their official currency due to the sheer amount of benefits it provides over fiat.
Plus you're right, not a lot of young people are that stoked about investing on gold anymore as they did in the past. I don't think it's good as gold is still one of the best investments one could make for themselves but at the same time you can't really blame them. Gold is gatekept by a lot of people, and as more people steer away from luxury like jewelries and fancy stuff, there's no surprise they'd divert their attention towards bitcoin.