My kid was BF so slightly different, however everyone I know took the bottles away around year 1 and had them on sippy cups instead. Mine also was allergic to dairy and hated all the alternative milks so I kept the BF as part of it til he was 15 months and outgrew the allergy. My little niece just turned 2, she uses a sippy cup or a sippy bottle type thing through the day and just has one bottle for night at bedtime and has done since she was 1.
Also everyone I know only used the newborn bottles that SAD use for a short time, as the babies got bigger and needed more ounceage of milk they HAD to! Poor B isn’t getting enough if all he has is one of those at a time, it’s no wonder he doesn’t get sleepy and is still hyped up (as well as them not setting the scene, calmness, no talking or laughing, darkened room etc which they do the opposite of them all AND have a camera in his face at bedtime!)
For someone who studied child development she hasn’t a clue!! I was 37 having my son, an older mum, I’d had experience with nieces and nephews but knew pretty much nothing. When I was pregnant I joined pregnancy forum and between that and reading I learnt all I needed to know. I had my sisters, mother and friends in work and on the forum for advice and boy did I use them for it! I also went to parenting and midwife classes while pregnant and also to mum and baby classes galore after he was born - at the time we were living in the U.K. away from my family so I was building a network of friends for both him and me. I knew it wasn’t ideal to shut ourselves away on our own in a (non)beige (bungalow) house.