Because employers do not want to Wine glass Halloween shirt take a holiday anymore. If you want to turn Halloween into a holiday, you will have to delete a holiday.
Which will make the supporters angry about other holidays. Also, because people like holidays that fall on Mondays and in case Halloween will be difficult because Halloween means ‘All Hallows eve’ and Hallows is on November 1. So it doesn’t make sense. Halloween falls on October 27 when Holidays are November 1.