its wierd that it is compared by CO2/mass, it would make more sense per callories or some important nutrients.

I think he meant relative cost (including time)

So you first said they try to do/offer to do something like walk you home, buy you something, etc. and you said you don’t want that. Now here you say you want them to do something, in particular when they see something bad happening (i think you meant when they see girl treated poorly by a boy/man). That seems kind of confusing.