Why do people act like services should be free?

I've seen a lot of people(most likely kids) who expect me to do things for free. People on here do the same. For example, I was in a server when some random person asked me to fully awaken his dough and do 7 flame raids for fragments. I asked him what he would pay, and if he would host. He said he will pay nothing because "I have to be nice", and he said I should host because he doesn't have any 1m fruits other than leopard. I declined and he raged on me, telling me to quit the game and that I'm a "meanie". For all the starters out there, get this. I am not wasting hours of my life helping some stranger I don't know and probably never will know. If I am going to, I expect some payment.