if my users chose to visit asa mobile device rather than a desktop device, thats not a problem; but i would view taking that decision away because "user doesnt

if my users chose to visit asa mobile device rather than a desktop device, thats not a problem; but i would view taking that decision away because "user doesnt know whats good", as a bad move. in the case you have illustrated, a user can cut or paste the ".m." into the URL at will