With the right technique you can sing anything. Speech level singing is the sound you hear in Michael Jackson, and Adele. Seth Riggs discovered how to keep a singers voice in shape and make them sound incredable. You can sing for hours and not hurt your voice. This technique is also safe for children. Your first lessson is free, you don't have anything to lose. I have taken lessons from Seth Riggs, Dean Kaelean, and Dan Whitley.
Guitar lessons are also about technique. When you have the proper fountation you can play whatever you want. Learning the basics is the foundation to be able to play anything. Developing your own style will give you the confidence as a musician to play in front of people. Learning songs won't make you a guitarist, however learning how to put those songs together will.
I have been a lead guitar player for a country Rock Band. I have traveled all over the world playing the guitar. I learned things on the guitar you will never find in a book. When you play with other musicians you learn much more.
Band classes are avaliable when you reach a certain level of skills. When you play with other musicians you really learn how to play.