alberto
Yes, it is due the goal of the belt, for you, is very specific, you want to avoid an occasional sexual relationship, and yes, for that a rightly tight chastity belt is enough.
But some girls have a more exigent discipline, some of us wear the belt because the orgasm should be avoided, and for that the secondary shield is fitted permanently, or in my case, it is not the orgasm, (in fact we think the orgasm is a mere consequence), but the touching that is avoided. And if you want avoid all stimulation, sometimes you have to fit thigh bands.
alberto From my point of view thight bands are way too restrictive
It depends, except sports, you can not think in anything that a girl with full belt can not do it in home.
If you are talking about wear them 24/7, then, you are right it is stupid and barbaric.