I think its a good idea, but really you can find either local teachers for a lot cheaper than this even in the most expensive of countries/regions or online teachers for cheaper. You could charge these rates if you have an excellent reputation / website / CV but really anyone could have just posted the above...
Hi!
I agree with you all.
I will do the first lesson for free and then after:
$25 per 30 minutes
$40 per hour
"You said "anything music", can you play and teach mandolin?"
No, by anything music I meant song-writing, rhythm counting, post-production, reading notes/tabs, etc. I specifically said I can play the guitar and drums. No mandolin.