Yes, the UV5R's do have channels. But, you need to program the frequencies into the channel memory bank.
Studying for the amateur radio exam will help you understand the concepts, but the techniques required for programming frequencies into a ham radio are different for different manufacturers and sometimes even for different models from the same manufacturer. You have to read the manual for whatever radio you are trying to program.
The UV5R does have channels but they need to be programmed to contain similiar frequencies between the handsets so that Channel 1 on both handsets use the same freq. Programming the frequencies into the channel memory bank can be frustrating if you are not comfortable with these kinds of units. If you want a plug-and-play experience, buy a FRS or GMRS radio. But, if you want a more powerful and far more flexible radio, these UV5R's are great. Just keep in mind that to use them to their full potential without fear of penalty, you require a license and that license requires training and passing an exam.
Here is something that you can't do with an FRS, GMRS or CB radio: You can't listen to logging road frequencies. With these UV5R's, you can program in the frequencies used on whatever logging road you are traveling on and stay informed of anyone else who is calling out their position on that road. ie. A UV5R might save you from a head on collision with a logging truck on a one-lane dirt road. And, while illegal due to Industry Canada regulations, I'm betting the logging truck drivers would appreciate it if you would also call out your position and direction of travel on that road.
