I'll just tell them that the curfew is BS and I'd rather die having fun at 20 then die living a safe and boring life at 100.
Can you see into the future? Always do things in a calm and rational manner.
No matter what, things can happen in teh future, and you may need your parents help and they may, naively, think they are helping.protecting you. Assert your rights/principles, but do not alienate those around you and have known you for so long.
Fear leads to hate, hate leads to anger, anger leads to suffering.