Bub on five bottles still

[tessjs]

I have a twelve month old who is still wanting five bottles or four a day he doesn't drink them all but sometimes he does.I would think by now he would of dropped a couple or more by now at his age.... do i stop giving them to him hes even waking up at night still wanting some.At a loss i thought naturally he'd drop the bottles.hes been on solids since six months HELP!!!!