Jailbreaking voids your warranty (though on devices this old, it may not matter anymore). It also carries security risks and may break certain iOS features. This method is only recommended for users who are comfortable with technical troubleshooting and understand the risks involved.
: If the app won't install or constantly asks for an update, you can use YouTube via the Safari web browser. You can even add it to your home screen by tapping the Share icon and selecting Add to Home Screen . install youtube ios 1257
: Google officially requires newer iOS versions (often iOS 14.0 or 15.0+) for the latest app features . Jailbreaking voids your warranty (though on devices this