I fully support the good intentions of the article writer, but I'm iffy about the emphasis on "stranger-danger".
There has never been any case of a child abduction by a stranger at Disney World. Strapping your child into a stroller for the sole purpose of keeping them save from stranger abduction is analogous to chopping down every tree on your property to keep them safe from falling limbs. Now, strollers are great for tired children, and for toting gear, as a place to sit out of the sun, and even for keeping "runners" pinned down, but as child abduction prevention devices? Not so much.
The biggest risk to children at WDW is wandering off and getting lost. And by "risk", I mean tears and recriminations and more grey hairs on mum and dad's heads. Children are misplaced by the hundreds every day in Disney parks, and they are all reunited with their families, without fail, every time.
So, by all means, teach your children to find a cast member (or shop keeper, other mommy or daddy with kids, construction worker, basically anyone doing a job who has a reason to be where they are). Teach them to recognize when adults are crossing their boundaries and teach them that they have a right to speak up and protest treatment that makes them uncomfortable. Or, as we put in our church's kindergarten program, "No! Stop! Go!" But this isn't specific to Disney World. It's just sensible advice no matter where you are.
Also, with regards to, "if your kids are old enough to speak and understand numbers, they are old enough to memorize your phone number," I'd argue that children can memorize well before they can understand (after all, we don't wait until children can understand the alphabet before we teach them the ABC song!). If your child is old enough to sing "itsy bitsy spider" and their ABCs, they're old enough to be able to recite their full name, their mom and dad's full names, their phone number and even their address. They can also learn spell their last names. Put it to a catchy tune, repeat a million times, and next thing you know is you're biggest worry will be your child proudly reciting your street address to every dodgy looking street person in town! There's never any excuse for a kindergartner believing their mother's name is, "Mommy," and their own name is, "Bubba." (True story!)
