I don't think my baby will ever sit up on his own 😩

Kayla •
Is anyone else's 7 month old not sitting up fully without being assisted? My son is a little over 7 months old and can only sit up on his own for a couple seconds maybe a minute without going side ways or pushing himself backwards. I keep seeing other babies younger than him that are already sitting up and I'm kind of getting worried. Will he just surprise me one day and do it?