Yes that's so true that they give you those good omens to carry with you. I remember looking at my two different palms and see what i would become was much stronger and that gave me an added confidence and belief in myself moving forward. In other cultures it is more valued.
My husband tell tales of being in India and sitting on the bus and the person beside him would ask "Where exactly are you from" (being he was a westerner) then he would grab his palm and begin reading it. Very different.