Why?

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.

Would there be a way to 3D print plastic part of a battery and just fill it with standard battery types (cylindrical batteries) and make them swapable? Because as far as i know there isn’t really any electronics in batteries, just different voltages based on number of batteries in series and different mounting mechanism. It just seems like a silly vendor lock-in.

In a lot of balkan languages this is similar to how you would say girl friend (we spell it frendica) so it’s kind of interesting