just curious but im going to my first autocross this weekend. I wanted to know if i would benefit by raising my car (picture supplied). I'm sure at my height my suspension geometry is off and may give me issues with handling.
For your first event I wouldn't worry about it too much. Just concentrating on getting through the course cleanly and getting faster each time will keep you plenty busy without worry about the suspension setup.
Junior Karts start at 5, IIRC, through 16.
When you have your learner's permit you're allowed to co-drive with a parent in a big-boy car.
16 and up you can drive solo.
To simply get on-site and watch, 0 years to less than 18 years old you need a minor waiver signed by both parents / your legal guardian.