Kids are great. Definitely testing, but that's the whole point ain't it. Boring sucks. I will take the challenge of parenting anyday.
I have 4 kids, 2 1/2, 8, 9, and 13. Wouldn't change a thing.
We have a triple tandem and we hook up a trailer to it, to make a quad essentially). Best fun it is, gets the family out riding, and the great thing about a tandem is that everybody rides together, even with varying levels of skill and fitness.
We also have our roadies that we ride ALL the time. I have a 650 wheeled roadie that my daughter rides, and while I have to ride at her pace, it's actually great family bonding time.
I also ride at all hours of the night and day on my own at my pace. I drive trucks long distance, so cycling is my stress reliever as well as great for my fitness. Depending on work, I will either go for a ride before or after. Normally ride on my own during work days and with family on my days off.
As others have said, if you enjoy it enough, you will make the time.
2013 Giant TCR Advanced SL 0, 6.92kg
2013 Giant Defy Composite 2 M, 8.5kg - Wife's
Azzurro Torino 8.55g
Fuji 650 10.8kg
Miele Lupa Triple Tandem 38,89kg