My friends come to my house occasionally and we all smoke shisha but i never ask money and wouldn't accept it if they offered but they have brought shisha as a gift, which i accepted
. Sometimes id go around to there house and they'll have their own shisha but most of the time we smoke at mine because there not free top smoke at home as i am. I smoke the most out of all of them and mostly smoke by myself, not extacly alone because i have my wife with me but she doesn't smoke. The only person who somes regularly with me is my little brother who lives accross the street but i can't expect him to chip in.
However if was still at Uni (we call College, University in UK) and all my friends smoked then everyone would be expected to chip in for the shisha and coal before its purchased but if it's already purchased then no one would expect to pay for it.