J.B.
Where do you live? I live in the Grant Park area, and I often run into grandmothers with their grandkids at the zoo and at the Grant Park playground -there's a great, new (opened last year) zero entry kiddie pool and splash area at the park as well. I also see grandparents with the grandkids A LOT at the Imagine It Children's Museum downtown and at Leapin' Lizards in Decatur (a bouncy play place). If you're anywhere near the Grant Park/Ormewood Park area, let me know and I can direct you to a lot of places where your grandchild will interact with tons of preschoolers and you won't be the only grandparent around.