Count me in with those tired of these judgmental parenting threads. My (just turned) 7 year old is so tall; kids in her school think she's in 5th grade and she's in 1st. She is over 4'6", 70+ lbs, and wears a size 10-12. Can you imagine the looks I used to get when she'd throw a tantrum at 3, but looked about 6? Even my 5 year old son is now taller than all of my daughter's friends--he's taller than the 2nd grader boy at the bus stop, and is growing a full year behind my daughter.
So, please, unless a child is in danger, mind your own business. And the popcorn? I don't really see a problem if the mom bit off the kernel part. Of course the dad will leave the mom alone with the kids again. Goodness!