Apple didn’t put any block on the iPad, your father did when he set up find my iPad. Activation lock applies to all devices new and old. Apple has to be perfectly satisfied that you are the legal owner of the iPad before they’ll remove the Activation Lock. They have to be careful because there are so many thieves and scammers trying to activate devices they obtained illegally.
Apple is not responsible for updating apps or ensuring they will remain compatible with older iOS versions. The app developers are the ones that no longer support apps that run on such old devices. The new apps require more computing power than your old iPad has.
Apple is not responsible for updating apps or ensuring they will remain compatible with older iOS versions. The app developers are the ones that no longer support apps that run on such old devices. The new apps require more computing power than your old iPad has.