Oran had cows milk from something like 10 months beacuse at that age he refused any forumla milk but even if he was drinking formula I would have switched at 12 months anyway - I don't see the point of waisting money on formula money making products (i. e follow on milk) when he can have cows milk instead as now he is eating properly he is getting all the other nutrients he needs, he also has yoghurts and cheese in the day. To me cows milk is more natural than Man Made formular and if they would have said he could have had it from 6 months I would have probably given it to him!
Re the last bottle, I switched orans to a sippy cup about 2 weeks ago as all he did with the bottle was mess, I figured it was maybe cause he has all his other drinks out of a cup, the cup holds 6oz and mostly he has nearly all or all of it but occasionally he doesnt have any and just tries to feed it to me, I don't worry about it. at the age he is now and because he is eating proper food the bedtime milk is just really a drink now, and something he associates with time for bed, its not a source of nutrients anymore. Ill give him bedtime milk out of a sippy cup till he is ready for a proper cup then it will go in a normal cup and he can have it as long as he wants, we always had milk before bed cold in the summer and warm in the winter so I dont see it as a problem. Id rater him have a drink of milk before bed that suguary cordial or Fizzy pop (he wont drink water!)!