1 If you're passionate about your job and constantly try to do a better job, not only AI is not going to take your job, it will even make you better at it. However, it will definitely change the content of your job, most of the boring, repetition works will be gone, so what's left would be mostly thinking, intense thinking. Your need to learn to observe and think, if you can learn to observe and think, you will do a very good job.
2 I'm specially worried about the future teenagers who will grow up used to having short attention span, their potential would be hindered by not being able to focus. What I recommend is actives like reading books, drawing, gardening, even organising your room. These actives train your brain to learn how to observe and think about something new.