What age do You go to the Parks alone?

[*DisneyNerd*]

I am turning 16 in a week and my boyfriend is graduating from High School on Thursday and he is 18. As a gift from his parents he is getting a trip to WDW. His parents awhile ago had asked my Mom if it was OK if I would be able to go on this vacation with him. My mom said yes. We will be in a relationship for 2 years on my 16th birthday May 27th. He is also my next door neighbor and we have been best friends for 10 years since I moved into this home with mom. This will be the first time I have been to WDW and the parks without my mom as well as sharing a room with my boyfriend.