We started coming down with a 9 month old which was pretty easy in comparison. Now our 3 year old 5 year old have been down 4 and 5 times. It can be great at times and a challenge at times. Under sail always in PFDs and clipped into jack line in the cockpit. If they venture to the cabin in calm seas then no life jacket. Once moored the are free to roam with constant supervision. They wear swimmies to play around the boat and off the transom. The 5 year likes to jump off the bow. We typically keep sailing to less then 2 hours a day. We always have less sail out then if just adults on board. Have food and activities ready at all times. Plenty of beach time. Paddle board time. Etc. the kids do tend to like the busier beaches to watch and play with other kids.