why is it that people are still afraid to adopt it, but it is legal in many countries
Can anyone tell?
It is the government who doesn't want the people to properly use Bitcoin. The citizens are willing to use it and India is a nation where Bitcoin and crypto is very popular.
The reason some governments are scared to not allow free usage of cryptocurrencies; they cannot control it.
Warizx is also an India exchange in that was helped by Binance at launching, as at today it produces over $5million daily trade in the bear. Obviously there are chances that the exchange did nothing about the regulation and was ax. Such exchange in that kind of countries will have option of P2P trade to make more money and establish itself but if he decides not to conform with the regulatory bodies, they wont be trusted and might be attacked even by the media.