There have been some very good comments on GMRS/FRS. I have probably mentioned this before, but if you want to have backup communications, especially for families, GMRS is one of the best ways that I have seen. Because GMRS and FRS and pretty much interoperable, that does create some downsides if you have someone running higher power GMRS equipment, especially with the allowance of external/gain antennas and they are not licensed, you can not easily determine this.
For rural families that may not have the best cellphone coverage, GMRS can be useful. Even though retired, we continue to live on our small farm, but if we were large enough to need other workers, it would be possible to use a GMRS license for the family members and HT's for non-family. This would allow a good base station to mobile/portables. This could also work for any small family business that may have a few workers who are not part of the family.
While there is not much activity on GMRS, there are commercial users of FRS. This past year I kept hearing stations talking back and forth and it sounded like they were loading something. Comments went on like "OK, Joe, a little further, oops too far, back off, OK that is good right there." And this would go on for long periods. I finally found out that these were fiber optic installers who were working along my ridge. My base antenna is a gain GP-9 at 40 feet so gets good distance. I have talked to hunters over 10 miles away if there were close to the ridge. If I monitor MURS frequencies I can pick up some of the Walmart channel five users at times. They must have to be in certain locations to make that work over the 7+ miles distance.
For a lot of off road folks, it seems like MURS would be pretty good if you did not want to get any license. And now we are finally seeing some legal MURS radios that are reasonably priced. In a really serious emergency, without any planning ahead of time, I suspect CB will be useful because so many folks have them. I wish they would have SSB, as we do, but that is not common. There are SSB CB nets in my area, but most of the stations are very weak except one ham about 20 miles away. He is net control for one night a week so I check in there from time to time. Or talk to him on 2 meter FM.
Realistically, most people just do not want to study for an amateur radio license. At one time my daughter had her Technician Class (she accidentally let it expire) and my wife and I still keep our Amateur Extra Class licenses, but rarely use them anymore. No one else in our family has the slightest interest in ham radio.