Jews haggle over everything for the same reason Indians stand infront of trains. It is not neccesary for them to haggle over everything, but everytime they give a goy money they lose Jewzat. Everytime they scam a goy they gain Jewzat. Giving goys things for free? Jewzat suicide
Jews hate goyim so much they donโt even bother with any form of charity. There are Muslim, Christian, Sikh, Buddhist, and Hindu soup kitchens but when have you ever seen a Jewish soup kitchen