In previous iOS versions, there has been a facility to prevent apps being deleted without entering the passcode. I used this, and the ability to prevent in-app purchases, to prevent my inquisitive Grandchildren from doing things that they oughtn't! Now that I am on iOS.13.n, last night I wanted to delete and reinstall a troublesome app - but found the delete protection set to on, presumably carried over from the previous versions of iOS - and for the life of me I cannot find where Apple have hidden the On/off toggle for app deletion, purchases, etc.requiring a passcode. I've attempted to search the interwebbything but to no avail. Can someone put me out of my misery and tell me where I can now find these useful options? many thanks in advance.