Well, I build software for free just like I play guitar for free, repair stuff for free, help out organising events for my children's school for free, taught el

Well, I build software for free just like I play guitar for free, repair stuff for free, help out organising events for my children's school for free, taught elderly people at the local care home how to use computers for free et ce te ra. I do not get the feeling that I did nor do wrong by acting this way nor do I feel like I'm doing wrong by using free software. In what way would the world be a better place if I started charging money for the mentioned services and started paying some of it for software?