my child is 7 month old but yet not learn properly to seat so is it ok or not and he is doing other activities like rolling ,proper eating but seating still he won't like to seat more than 10 minutes with support

A. A child learns to sit by the time of eight months to 8 1/2 months are still left it sometime you are supposed to make your child say after six months complete and then reach the milestone within another 2 to 2.5 so currently there is no problem