I would agree ham radio can probably be safely classified as a hobby. But, I would not make the same statement about GMRS. Yes, for some GMRS is a hobby. But, as @wayoverthere notes, probably a greater percentage of MyGMRS members than of the general GMRS population fit that description. Look at the history and licensing to get a feel for what GMRS is. It's roots were as a business service, and those early licenses are still grand-fathered in, and business use is still perfectly legal on GMRS. Licensing is by family unit, not individuals. This encourages use of GMRS as a practical communications tool, rather than as a hobby. Another point of comparison is repeaters. GMRS repeaters are limited to 8 frequency pairs, have no coordinating body, and commonly share frequencies using PL, etc. to control access. GMRS repeaters tend to be used for short, task oriented communications and less for rag chewing. So, sharing channels works well. Ham radio, with frequency coordinators, etc. seeks to limit the number of repeaters in an area to avoid interference. There are many other differences, but I think I have covered the main points. But, I would add one more thing. Where is it written that either as a hobby, or a personal communications tool, that getting people interested in two-way radio is, or even should be, a commonly agreed upon or shared objective? I think that is an admirable goal. But, I would also not fault someone who did not share that goal.