There are three primary methods to get YouTube working on an older device: Official "Older Version" Method
This guide explores how to safely acquire and install a YouTube IPA on iOS 12 to restore video functionality to your classic hardware. Why You Need a YouTube IPA for iOS 12 Youtube Ipa Download Ios 12
Disclaimer: Sideloading apps violates YouTube’s Terms of Service. Your account could be banned. Proceed at your own risk. There are three primary methods to get YouTube
If the App Store method fails or you want a modified version with extra features, you can sideload an IPA file using a computer. Youtube Ipa Download Ios 12