Is it normal to have a good ear but not play an instrument?

I can’t play instruments… I think I don’t have that talent. But I can sing, and write lyrics and find the melody! Funny thing is I need to form a band or else I can’t do much on my own… But are there, musicians who aren’t good at an instrument but are good at ear still and sing etc? I can create a song in my head but I can’t put it on paper.