when i was like 2 my parents got me a lab and personally i thought it was ALOT more fun than a small dog. now as a teen i want a dog i cant take evreywhere ect.. but then, me and this dog would run outside, play rough,wrestle, jump in the pool, steal cookies and get into all sorts of trouble together. i practically learned to walk holding onto this dogs collar. I have videos of me holding on to the puppy (well trying to) and her falling out of my arms and it was no big deal, the pup didnt even notice. Plus, i felt alot safer with a big dog and my parents let me walk her alone when i got older because they knew i was safe.
Larger breeds, maybe not even labs. even just medium like coker spaniels are MUCH more appropriate for children, for safety, not to mention that small breed puppies probably arent all that fun for kids. I was allowed to be alone with the puppy all the time, but with a small dog, supervision is necessary.
just my input