I used to race fairly often on the streets. After a certain close call, I realized that the police repercussions, danger to myself, and lastly, the danger to others, was too great.
Last year I started racing autoX and it was the best decision I've made in awhile. I'm just as addicted to speed, adrenaline, and driving at my car's limits, but now I have somewhere safe (and legal) to experience it.
I think if autocrossing was cheaper, and more widely known about, many kids my age would prefer it to acting like assmonkeys in their civics on Polaris Pkwy