(Thought I posted this already but can't find it so I guess I didn't! Frazzled mom, here!)

We have a piano and I want to offer lessons for my kids, but I am wondering what age it would be feasible and not a waste of money. We did swim lessons too early as it turns out and I'm annoyed at all the money we wasted trying to teach him to swim before he was ready. (at 2 and 3-- now at 4, he's really getting it).

My boys are 4 and 18 months. I can't remember when I started lessons as a kid. Anyone with a music background have any thoughts about it?