'Robot' is just the non-biological mechanical interface of a computational system into the physical world. Bodies are just biological interfaces of computational systems into the physical world.

The question is misdirected. You don't become friends with actuators, servos, power delivery. Nor, do you 'friend' a body independent of the mind.

Obviously, the essence of 'friendship' is things like mutual interests, trust, goals etc. For that, you need computational entities capable of complex world modeling, planning, analysis, prediction, learning ... all various forms of goals set by the evolutionary imperative to survive by becoming smarter and more effective at exploiting and manipulation physical resources than the competition.

Therefore... given that humans have extremely slow evolutionary rates, and computers improve along exponentials, the ONLY semblance of humans in the (near?) future will be those who adapt to leverage and/or merge with robotically fascilitated silicon computational systems.

You are already friends with robots. You probably wouldn't be here if you weren't. Your phone, car, home ... for example.