In my faraway land, touching a person when they have told you not to, is considered a 'common assault'. Yes, that is the LAW.
Very true. In this scenario, however, no one was told to stop. Also, what you described generally isn't considered "common assault". Assault generally required intent or attempt to harm. You may be thinking of battery.
Cultural differences can be an issue, but anyone who comes to THIS country needs to learn fast that women have the right to say "HANDS OFF", and anyone who is born in this country knows bloody well ---- no touching unless invited.
That's great except my example didn't involve women or hands, but rather the concept of personal space in general. And there are differences withing countries. Within the same state or province, in fact. Within neighborhoods. There is no common univeral national, regional or local ethic that applies.
Copping a feel is usually tried by randy teenagers, those who are experiencing arrested development, or, well just plain disrespectful of women in general.
I know. Girls never have those dirty sexual thoughts or touch a man. And you forgot drunks.