Habits already forming?

I will admit that I take shortcuts sometimes. For example I started cosleeping because I wanted to be able to side feed Charlie so I could sleep while doing so. Ditto for naps! Haha but now that Charlie sometimes pitches fits when I try to feed him in a position where we're not laying side by side I've got to wonder, when does he start forming habits and preferences? He already stopped drinking from bottles when I'm around because he wants to drink from me. That's made it trickier trying to take a break and let Eric take over, so what's next? I can't side lay feed every time I feed little man. Is this the price I pay for the occasional laziness?