Personally, I will say it is not safe having 4 young people in a car, all brand new drivers, for any amount of driving, let alone a very long trip. BUT, the question is, how is YOUR driving, and are YOU comfortable? And keep in mind you'll be having 3 other inexperienced drivers, driving YOUR car. I would not, in any way, feel comfortable knowing that. Then again, I don't feel comfortable with even many experienced drivers driving my car. Thats just my opinion from personal experience. My parents forbid me to have more then 1 young person in my car for the 1st year of driving.