So who would be liable in the case of somebody suing you? If the company has no legal existence, then would the individuals involved be liable, and without the protections of limited liability?
The website http://www.arbookfind.co.uk/default.aspx is sometime helpful for finding "appropriate ages". Schools use the system to help children find books matched to their reading level.
By far the best tip I ever got from /r/LifeProTips was "drink two cups of water first thing in the morning". Makes a huge difference for my energy levels and likelihood of getting a headache.
Yes, Dylan's version, you can do it with only about four chords.
Others I have enjoyed learning are REM's Country Feedback (not the slide bit, the chords) and Bowie's cover of Jacques Brel's Amsterdam - this has an F but you can get away with Fmaj7, which is much easier.
I'm very much a beginner too - coming towards the end of the Justin Guitar beginner's course. The song book that goes along with it has some good tunes.