The same is true for networks you share with your contacts—it can take a few days for them to get access on their phones. If you share a network and then stop sharing it, it usually takes a few days until it stops being shared so your contacts can't connect to it.
Kung magbabahagi ka ng network at pagkatapos ay ihihinto mo ang pagbabahagi nito, kadalasan ay aabot ng ilang araw bago ihinto ang pagbabahagi nito para hindi makakonekta rito ang iyong mga contact.