We need to appreciate the fact that if something is illegal in one country, it is not a must that it is also illegal in other countries. People have talked of marijuana being legal in some countries but we know it is illegal in most countries. Similar to bitcoin, it might be illegal in some countries but at the same time be legal in others. Therefore, bitcoin was not meant for bad reasons but to make transactions pretty easier. It is only that some people are taking advantage of the decentralized nature of bitcoin to carry out illegal activities. This to me does not make bitcoin illegal but rather a very convenient form of transactions with anonymity.