Sorry for no one replying to your post, but let me comment on this one
My LG is now just over 10months old and has zero drive to hold her own bottle and it might be my own fault, I still hold her for every feed - she is such a busy baby and doesn't really want her bottle unless I hold her and feed her in a dark room before her naps. (it has been like this since about 4 or 5 months)
I don't really mind, because she is so independant in every other way I actually prefer holding her and feeding her. I don't see her holding her own bottle any time soon.
I have bought her smaller bottles (the thinner ones since we use Avent) and she can hold it but doesn't really understand the part where she has to tip it, so I think we will be moving on with a straw cup soon for her water/juice/tea etc.
I don't see it as a problem, she'll start holding it on her own when she's ready and then there is nothing more I can do for her and she won't be my little baby anymore

actually not really looking forward to it but still try and encourage it.