According to the US Travel Association, the average person does not use 4.6 of their available paid time off (PTO) days in 2021. This statistic has decreased – in 2020, the average was 5.6 unused PTO days per person – but still yields over six billion unused vacation days per year. This poses the question, why is it so important to take your PTO if we as a society leave that many days on the table?