BB is just a smaller version of reservamerica.com (state parks) or reservations.gov (national parks). And if you live out west (we don't), you get to arise at 4:45 a.m. for the pleasure of not getting your desired campsite at 8:00 am! Alas the modern world, indeed!

You don't need to explain BB to your granddaughter, you need to let her use the app. She won't need to limber up her fingers. My buck says she scores!