How to even start here..
Calling the ipad inexpensive will make people in most of the world to laugh at you (even the discounted stock of ipad 9th is unapproachable for many).
While a guitar at a local store (just looked it up) costs under 80 EUR, needs no apps, no power, no subscriptions, has no EOL, doesn't have a battery that will go bad.
Yes you need time to learn, but you do not necessarily need to invest more money with an analog instrument.
I'm not touching the first part of your post.