In the gift economy, everyone just gave others what they needed knowing they would need others to do the same later

It can be argued this type of economy doesn't stimulate development of medicine and stuff without some way to manipulate it, like money/barter, but humans seem to deeply prefer a gift economy at scales where it works

A free milli might have benefits for you depending how free it really is, but theft and brainwashing have heavy cost, not very free