Affiliate Marketing Secrets

Hello there.
I am trying to enter a contest, and I am reading the official rules for it to enter. I am 17 years old.
Here’s the piece of text: Event is open to legal residents of the 50 United States and the District of Columbia who are 18 years of age or older as of the date of entry, except employees of Sponsor and its affiliates and the immediate family members and/or those living in the same household of each such employee.
Is it saying those under 18 can’t enter? Is it saying that if you live with someone who’s over 18, yet you aren’t, it’s still okay to enter?
I am really confused. I’d hate to enter in my submission, and then get in trouble since I am not 18. :/