Indeed, this is not a ham radio discussion if the OP doesn't have a ham license and will not be operating in ham bands.
GMRS is separate.
Any digital radio that does DMR (and is "open", as in frequency range) is more than capable of being used on GMRS frequencies.
Nothing wrong with having a highly capable ht that can do DMR, and all the analog stuff as well. Tools in the toolbox = versatility.
DMR capable radios are for the most part capable of some sort of encryption, for simplex use. Not hard to set up at all, in the CPS. Both radios on same freq programmed with same key, done.
That said, just talking on a normal freq, in digital mode, with no encryption, keeps half of the idiots out there from hearing you anyway. Listening to the same freq on analog gives you nothing but staticy bleeps.
The DMR ID thing is not a technical requirement, it's a "gentlemensc agreement. Almost moot though, as most DMR repeaters are set up, by the owners, to not let you in if you're not broadcasting a valid ID number.
This number can only be gotten by showing a valid ham license at radioid.net. Free and easy.
DMR is pretty neat, if you're in range of a repeater or hot spot, gives you a way to talk to folks all over.
Digital simplex works great, good sound quality.
They're not hard to program, even writing your own code plug, once the learning has occurred.
There, how's that for massive thread drift.