Aquinas, when my youngest was about 18 months I had multiple people asking me if she was 3 or 4 as in "Is she 3, or 4?" Or "So she's.... 3... And a half?". An THAT was weird enough for me. In my case they wet all looking right at her and so maybe it helped them not guess older, she is huge, but still he difference between 1.5 and 3.5 is a lot even wen you're tall! She wasn't as advanced as your son though, and she's kind of slowed down with the more overt advanced skills as she focuses on being a social butterfly. She's hugged strangers in public twice this week. Both times she maybe meant to hug my legs but her response I not to freak out, it's "I'm firstname, that's my mummy, I blah blah blah blah blah blah...." While hey look on in befuddlement.