Dating is just like meeting in groups with friends, but with at least one and possibly both parties expressing a particular interest in the other person's potential.

It is a focused interest in a person - where it leads depends upon how it goes. Sure, that could be sex, friendship, a powerful desire to leave in a hurry... a story to tell. Or an occasion that is fun, but which need not be repeated.

It is scary (and courageous) to be the first to say something. That's why "dating in groups" is less risky-seeming. And being pursued can be scary too.