Not drinking on 21st birthday?

My friends don't want to come to my birthday because it won't be at the club or bar. They are all 21 and I will be turning 21. Everyone expects me to go wild and drink alcohol but they all know that my family has a lot of alcoholics (Parents are recovered alcoholics) so I don't ever want to take a sip of alcohol in my life. They said that if they don't get alcohol that they at least want to smoke weed but I don't smoke either. Does anyone have advice? I honestly just think I would rather spend my birthday with my family only at this point.

*Thank you everyone! You're right that I need new friends because I am worth it! I will spend my birthday with my family and I love the spa idea!😊❤