From recent news in India it is heard that bitcoins are used to sell drugs..I know its a currency and it is also used as a normal money... but these can create a bad space in people's mind that bitcoins are used to sell drugs..so they will not use bitcoins... Conclusion is that BTC is also a currency which is having a high value in the market..and bitcoins must not be used in these illegal activity which can reduce its usage and value.
I hope that this is not true. Bitcoin has help a lot of individuals, there are a lot of families who are now dependents on it. In some countries it reduces unemployment rate and increase economic growth. Bitcoin is good for us i hope illegal activities will not be part of it.