I don't think there was anything wrong with your response.
My sister asked me this before. More like wondered out loud, since she knows I never gave DS a bottle. She wanted to know because she wanted her DD to be able to feed herself. She was trying to teach her to hold it when she was 3 months old! And sadly, I think that's a milestone that a lot of parents look forward to so they can spend even less time tending to their child. At least, that's what I see IRL and on mainstream boards anyways.
I used the opportunity to explain to my sister why she should continue to hold her DD, even after she mastered holding the bottle. I went into bonding, easier weaning from the bottle, baby not lying flat on her back while drinking (less likely to get ear infections), and less chance of baby-bottle mouth (since she can't carry around the bottle all day).
And I'm happy to say that my neice is almost 10 months old and still being held for every meal.
