Cheers Phil. Your approach is the same as mine. I worked as a music teacher for a few years at a music college until it got a bit too much for me.
Im a fan of self-directed learning, but I want people to learn new skills. Most importantly, to have fun.
I’ve had a great replies here which has been really helpful. As well as learning the theory some just want to sing, so having a bank of 30 songs I can get the chords for and learn is perfect. I can get the chords for uke, guitar and piano prepared.