Beginning electric players tend to want to mimic the sounds of the pop music they hear, and tend not to learn the basics of accompaniment to the voice (the reason to learn the guitar). I play and have taught both; players on accoustic tend to think more versatilely about the instrument's function.
Also a quibble with someone above, about the left hand being primary. Nonsense! Many of my mid-range students learned a bunch of chords and scales, and have no right hand knowledge or intuition or strength, because of this lop-sided idea. Especially in bluegrass music, where a smart right hand is essential.