baby not interested in holding bottle

Laura • 2 beautiful boys. East Yorkshire England 💚
Hey mummy's!!
Just a quick one my little man is 6 month old - suffered really bad with reflux (projectile vomit 3+ meters waway!) anyway I'm getting a bit worried as he isn't interested what so ever in holding his own bottle - he wil put one hand on it and that's it - even water from a sippy cup he isn't bothered. And I'm more than certain my eldest was doing this by 6 months?
Any other mums out there ? Or any insight