Maybe, but as one small data point, I was really surprised (and creeped out) to just now infer from MaoShen's comment and check on Wikipedia that the Pledge of Allegiance is recited at the beginning of every school day. In my country, the closest cultural equivalent is done once per year, in "Flag Day", and I had previously assumed the American Pledge was like that, being said on July 4th or similar specially significant moments.