How to Teach a Kid to Hang an Art?

I'd like to combine these talents and get money for them by offering private art classes to youth. My biggest worry is getting stuck with the kid who I have nothing in common with or just a bummer. How do I set up a screening process to make sure I only had to teach cool kids without them or their parents realizing they are being screened? That's from an awfully awkward artist. Isn't it better to teach teach a kid to do art and he'll be underemployed his entire life. Think about that for a second. He can chill forever. Teach a kid to hang art and he might become a docent or something somewhere. Now that's a job.