It's also depending whether the ticketing office officer is
willing to close an eye to the few days differences.
It is a ruling that they deny entry to those below the age limit,
even if it's going to be 1 day or 1 week. Not that the patrons will
be 'enlightened' overnight, it's a law that binds in their license.
No vendor would want to risk having demerit points over a few
bucks.