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People must first know bitcoin and not just about its price but it should more on the fundamental technology of bitcoin. Its hard for a country to adopt if their people know nothing about it. Its not illegal but some places are prohibiting exchanges from making any transactions, we Already started the campaign 10years ago and we are still here fighting for the best financial system.
Awareness != Knowledge
I am sure that 95% of people are aware of the existence of Bitcoin right now, and less than half of that are probably the people that truly knows what Bitcoin is. I've seen some people making their own seminars towards making the awareness as well as knowledge to Bitcoin to people. Banning would be like an instant game end for them, unless people could use VPN or do personal tradings in their area. I am not that surprised if every countries that had cryptos banned would do this anyday.