Ok, there are definitely a lot of trades where things are still taught by hand in the event that you have to do them by hand some day. Doing it by hand does more than just re-enforce knowledge. It also teaches you new things and allows a process, and the space to re-evaluate and innovate. We improve by doing those things by hand. That is very often worth the cost. You very often don't get things quickly, cheaply, and with quality. The AI will degrade if we don't provide it with quality information to work with. It is nothing without our skills. We won't have those skills if we don't use them.

You talk like a businessman rather than an artisan or a creator of things, so perhaps your mindset is different but what happens when the AI breaks something and nobody can fix it because they lack the ability to think about the problem constructively or understand what the problem actually is.