(An adult - with short fingers - if that means anything. hahahaha)
Most Helpful Guy
Just about anything will do. Playability is the key so really it's all about how it feels to you and how it fits your body. Really it's about trying a bunch of guitars and seeing which is best feeling for you.
Steel or nylons strings only matters with what you want to play. If your not sticking with classical, best to go with steel. A little more versatile.