My elder daughter tried guitar... actually no, I got her guitar lessons... she had the ear and the touch, but rejected it after a bit. She did take up string harp later, but has since left it behind.
The younger played violin, then viola, then also left it.
They were both raised as choristers also, did that together for 10 or so years, so they got a musical education. Who knows, maybe they'll return to music. You offer what you can to help them realize what they've got. They eventually pick up their own ball and run with it.