Crypto currencies have been banned by some countries and many countries have regulations to use them and many don't have any laws for using them which doesn't means that is illegal in that country.It depends on each countries and the people who is just ruling the countries maybe the ban can be uplifted in the upcoming years like south Korea did.

In many countries people are treating crypto as illegal as government can't have direct control over it. But, it didn't stop with negativity. Now, there are more than 18 countries which have legalized crypto currency to do transaction and exchange. The number will increase more in future.

BTC is holding 1st position in the market based on this topic btc is really good to use and yes few countries have been ban this or crypto currency but if we think about modern world or developed country they already accepted also they are giving lots of facilities based on this from my perspective it will be future currency one day.

At the begininig Bitcoin had prety bad reputation. It was mostly used on dark markets and therefore it was considered illegal. But with time this has slightly changed.
But I would say that every new thing should go through some negative phase because people are afraid of new things and don't have trust.
Still with time Bitcoin become more trust and it's geting more and more accepted because both individuals and institutions are becoming aware of the benefits and that Bitcoin and cryptocurrencies are the future.
As a conclusion I strongly beleive that Bitcoin and cryptocurrencies will become regulated and included in legal activities in economy and society in general, not baned.

The crypto currency to the market is still entrenched in the minds of many people-as a way of buying illegal things and money laundering. As soon as the crypto currency ceases to associate with it, the world will start accepting it.

In my opinion, many large players have earned money on the creation of the crypto currency and are now earning, including those that are in power. Therefore, they will specifically keep the crypt outside the law, to merge it into offshore.

The crypto currency is banned in some countries. Because the haven't realized its importance. Hopefully they will understand very soon.

The countries that banned crypto's, they only know that it's a currency that can be used for something illegal and they don't know that it can also be used for something better like transacting with normal transactions.
Each country has their own unique stand about crypto's and not all of them will ban it forever. As you can see, some already declared it as a legal currency and adopted it to their society which makes them a crypto-friendly country.

If we look at the developments of cryptocurrency enthusiasts I think in the future most state governments will legalize cryptocurrency in their country and will make cryptocurrency a valid payment instrument in the world.

Yes, I also think that the government is unlikely to continue to ban Bitcoin in the future. They may issue laws related to Bitcoin and cryptocurrency. I think Bitcoin will one day become legalised all over the world