To be explicit for anyone who gets confused with date-based math: your "joined in" year minus the year of your birth needs to be at least 19 to be safe. If it s

To be explicit for anyone who gets confused with date-based math: your "joined in" year minus the year of your birth needs to be at least 19 to be safe. If it shows 18, you may have been 17 instead of 18 when you joined.