Strict Parents?

I sat in my World Literature class today and I had no idea what to write about. Well, it finally came to me.

My parents. It's insane..they were always so lenient. All my life, they would let me hang out with friends without giving me much trouble. Now that I'm getting older, they seem to be getting stricter. I admit that I've been doing more rebellious things lately, but it's not like they even know. And I do suppose it does make partial sense that they're doing this, due to a incident that my mother had to go through, but I always thought that parents got less rigid as their kids got older when it comes down to things like going out. It just frustrates me....I don't feel like I can do anything or go anywhere anymore, and it's a time in my life, if anything, where I should be able to.