More than ever, I am convinced that amateur radio will die out. It can't be long before many PTTs tire of amateur radio as it ties up people and generates no revenue.
I can see the day coming when CB and amateur radio merge and callsigns are allocated (if at all) by national societies. It would not surprise me if all non-licenced things are merged at the same time e.g. ISM. The golden rule is no harmful interference must be caused and any interference accepted.
Personally, I am not bothered as long as I can continue experimenting.
Fewer and fewer "amateur" radio operators know how their rigs work and even fewer actually experiment i.e. they are much like CB operators.