No strollers near the Capitol. No tents on the National Mall. None of that Silly String on the parade route. That's just a sample of the items forbidden from President-elect Barack Obama's inauguration for security reasons. And while many people say the inconvenience is a small price to pay to witness the swearing-in of the nation's first black president, others are scratching their heads, trying to figure out how they will sit, snack, carry diapers or transport tired tots. Some older people are backing out of their inaugural plans, partly because of a no-chair rule for the parade route. Parenting...