- For the A major chord: When I place both first and second fingers onto the second fret of the E and D strings, the stretch to the fourth fret on the A string is nearly impossible. My third finger just doesn't stretch that far down in that direction. I'd just use my pinky finger, but I know later down the line, it goes on another string entirely.

Imagining that it just takes some practice at stretching the muscle between the second and third fingers to get it right, I've tried forcing my fingers into position, but when I do this, my pinky finger bends itself downward in a weird manner which isn't terribly comfortable, and I imagine will cause different problems later on.
- For all A chords (including the A5): When putting my the first and second fingers on the second fret of the E and D strings, I can't get the E string to ring. If I get the E string to ring, I can't get the D string to do so, one or the other just goes "thump". I think it's because my fingers are too big to both fit onto the fret...yet...I know adults with adult sized fingers play this instrument, so there must be a way to do this!
Playing around with positioning, I've found that if I bring my thumb around to the backside of the instrument, and then contort my wrist in an unnatural fashion to the point it hurts (in a way that would make a violin player cringe), I can get both of those strings to sound nice...but..common sense tells me that this can't be right.
Alternatively, I can keep my wrist and thumb in comfortable and natural positions and bring the thumb further up around the fret board, but, that makes that stretch for the A major (described above) literally impossible, so I don't think that can be right either.