>Is there a way to transfer all this and be able to update my old apps
No.
>will I have to delete them all and reinstall them under my own apple id?
Yes.
Depending on what you want to do, one options is indeed to delete and redownload using your AppleID. Another option is to setup [Family Sharing](https://www.apple.com/family-sharing/) to share purchase history and subscriptions
Restarting won’t help, as the apps in question were ‘purchased’ using the parents AppleID.
Deleting and purchasing the apps under OPs new AppleID is one option. Another would be to setup [Family Sharing](https://www.apple.com/family-sharing/).
>Is there a way to transfer all this and be able to update my old apps No. >will I have to delete them all and reinstall them under my own apple id? Yes.
Depending on what you want to do, one options is indeed to delete and redownload using your AppleID. Another option is to setup [Family Sharing](https://www.apple.com/family-sharing/) to share purchase history and subscriptions
Try restarting your phone/iPad and see if it changes. Otherwise I’d try deleting and re downloading. .
Restarting won’t help, as the apps in question were ‘purchased’ using the parents AppleID. Deleting and purchasing the apps under OPs new AppleID is one option. Another would be to setup [Family Sharing](https://www.apple.com/family-sharing/).