I see, here in the Netherlands, mainly negative views on crypto and bitcoin in the media. Today there was an article in a national newspaper about ICO's that was mostly talking about scams, pyramid games, easy ways for companies to generate money without having to deal with regulations, etc.

These views are caused by many (the majority?) of ICO's that indeed seem scammy and fraudulent. The actually legit well-managed ICOs suffer from this image. For mainstraim adaptation, it certainly has to be regulated in some way.

Another thing is the association many people have between bitcoin and the black market/criminals. Furthermore, people don't understand the technology so it is 'scary'. I think mass adoption can only start with some viral campaign that educates people and makes them enthusiastic, but that is only possible after regulations have been adopted that make people feel secure against hackers and scams.