Pelican's 6-foot Solo is a highly functional sit-on-top kayak that is simply scaled down for smaller paddlers. Superior stability means more confidence for kids; open cockpit means less worry for parents. Self-bailing design and swim-up rear deck with handles. Options include a comfort backrest, security flag and a junior paddle.
If you're wanting a toy kayak for a small child this kayak is great. So I am rating it based on it being a kids toy.
My son is 11, 90lbs, very active and was excited to kayak, but 1 hour paddling in a small calm lake his back was too sore to sit, it has no back rest which was the main issue, combined with the very short paddle that is soft. Also the place to put a water bottle isn't ideal, the bottle gets soaked in lake water so having something upright would help.
Going to attach a back rest on ours, add a cushion and have him use a proper paddle, we'll see how that goes.
Again, great for a kids toy just playing in the water, if that's what you're after I would recommend this. It is sturdy and I like the safety flag feature.
My kids are 9 and 7 and on the smaller side but my 125lb niece was using it and having a great time, with a slightly wet butt from waves and riding lower. My 100 lb wife uses it easily and it has spurred us to buy kayaks ourselves. The kids easily climb back on them in the water. I have watched them intentionally flip them many times, flip them back over and jump back up. My wife said they are extremely stable even riding over boat wakes. She said to flip it it pretty much has to be intentional (accidents happen though). They are very durable, I dropped a rope through the front drain holes and tied it from the bottom and towed it behind my 30hp inflatable for some white water kayaking. My 16 and 18 year old nieces said they prefer it to tubing since you can lean in the corners to stay on. If jumping waves dragging them behind a boat didn't break them I'm not sure what will. I think they will last a long time.
The family the plays together stays together.