Cutting his two bottom teeth 😢. Anyone know of natural…

I dont understand why some people let their toddlers still drink from baby bottles? Proper baby bottles? Just rounds off…

I dont understand why some people let their toddlers still drink from baby bottles? Proper baby bottles? Just rounds off and knackers their teeth so younger years teeth ruined for sake of not making sure they use a more age suited cup / beaker ect. Or is it just me