My kiddos (twins) are 6, and I didn’t start solo early morning joyrides again until they were 4. They take a lot of energy to begin with, but then you get to teach them how to ride their own bikes. I just bought one of those trail-a-bikes to do longer rides with one of them (yes, on a C&V, which is all I own). It absolutely gets better. I can’t wait to ride with them when they’re grown.