You can't make everyone switch over. That's the inherent problem with HAM. Any idiot can go to Walmart and drop $50 for a radio and antenna and be brodcasting in 5 minutes.
HAM is not only a bigger investment dollar wise, it's a big "time" investment. Not only do you need to take tests and classes but you need to practice to keep fresh. It's not just like riding a bike. Although I am a proponent of HAM use, I am not an operator nor do I have the time right now to invest. I do however plan on doing so at some point. The major benefit of HAM, in my opinion, is the added distance in the case of a major trail emergency. My 60, when finally finished, will include a HAM radio for just that case, or in the rare instance that I wheel with other users. In the interem I will drop way to much money into a top of the line 11meter mobile CB unit and linear amplifier. Now I know that linear usage is "illegal" but so is speeding and changing lanes w/o using your turnsignal (both of which are a larger threat to the general public). I own 4 radios right now all cheapies and two of them that are tweaked to about 8watts deadkey. Illegal radios? Yes, but much more effective and at a much lower investment than HAM. These radios allow me to talk to everyone I wheel with and others at much greater distances. With the right conditions I have talked skip from Mesa, Az to folks in San Bernadino, Ca and Dallas, Tx.
Until the masses are using HAM (which I donn't see happening for a VERY long time) I don't see it as being a neccessary piece of equipment.