youtube wont update

The issue is not with Apple, but with the App Developer.

Third-party App Developers decide which versions of iOS/iPadOS they will support - not Apple. Many App Developers choose to support only the most recent versions of the Operating System - perhaps only the current and preceding major major versions.

When a Developer ends support, they will frequently remove older versions of their Apps from the Apple App Store; as to when Apps are withdrawn, this is a decision for the Developer - not Apple.

You need to direct your comments to the Developers - such as Google who own YouTube.

This is a user helping other users with tech questions

forum, you are not addressing apple here  just  fellow users

if you wish to contact apple https://getsupport.apple.com/

and or Product Feedback - Apple

Use a Web browser to access the YouTube Website, instead.

Log into your YouTube credentials from the actual YouTube Website from a much more recent, third party Web browser.

That over 4-year old default iOS Safari Web browser is too old, not secure and not safe to use to access the Internet, any longer.

There are virtually NO MORE third party Web browsers left for 8-10 year old iPads!

Available and more popular third party Web browser choices are pretty much GONE, now.

If you must use these old iPad models, here is what is left for still updated Web browsers.

Pickins’ are slim, now!

ALook Web browser ( A fairly new Web browser primarily designed for old iOS device versions, but is still available to newer iOS/iPadOS devices, as well )

Dolphin Web browser

Maxthon Web browser

TOR private browser

TOR + VPN private browser

Turbo VPN private browser

This is pretty much it for iOS 9/10 compatible, third party Web browsers today.

Use the Web browser to access YouTube and your YouTube account on your old iPad.

The YouTube app is just a shortcut to the Website, anyways.

If you are using any old iPad model that is stuck on iOS 9, all of those models will be 9 and 10-years old this year.

The 2011 iPad 2 will be 10-years old by March/April 2021.

Best of Luck to You!

As to all of your other concerns, these have all been happening right along.

Older versions of many older, third party Web browsers now have difficulties with some Website content on the Web.

Virtually ALL third party app developers have abandoned these old iOS 9/10 devices well over two years, ago, in 2018.

The handwriting is on the wall for all of these older 2011 through 2012 iOS devices.

They are not going to be supported and will soon not work well on the modern Internet.

This has already happened years, ago, with the original 2010, 1st gen iPad stuck on iOS 5.1.1.

Apple ended support for that iPad by 2012 and All app developers abandoned that iPad by 2016.

Now in 2021, most of the common content on the Web, today, cannot be accessed be that nearly 8-year old iOS Safari Web browser, any longer, including many streaming video Websites and even some audio related Websites.

You want to hang on to old technology, then you need to face the facts that sooner than later, that technology is no longer going to work or no longer be suitable for its original intended purpose.

If Apple and app developers, in their infinite wisdom, tried to extend the life of these old devixes, you'd be signing up into these support communities whining, complaining and ranting about how slow and sluggish your 9-10-year old devices are working with NO solutions, at all, to be able fix that issue!

If you get to a point where you cannot replace a computer or a mobile, personal computing device every 8-10 years, or so, this is NOT the device makers’ issue/probem is it!

Nothing is forever.

Computers and computing devices are NOT like most other long-term appliances, like stoves, refrigerators, washer and dryers, cars, TVs and the like,

Consumer computing electronics move at a fast and constant pace and new and more advance technologies will always leave older technologies obsolete over a much shorter period of time.

Users of technology demand, every single year, more powerful and sophiticated and cutting edge technologies and devices.

AND, year after year, technology companies comply with this continuing consumer demand.

Until that changes, old personal computing devices will continue to be rendered obsolete within a 10-year, or so, period of time.

Don't get me started on all the governmental and military applications of all of this modern, advancing technology, either!!

Sorry & Best of Luck to You!

Also, Apple has Billions in their bank account.

I am sure Apple has lost some customers, over time, but the cusromer loss is a lot less than the amount of new customers they continue to gain/acquire year after year.

Sorry, I couldn't help myself with that Apple losing customers comment.