Idk, I'm 16, bought my 87 when I was 13. It was $500 and was a mess. In my case it's a project, but I would have no problems daily driving it if I had to. Simple thing is, if you don't want shyt breaking, don't beat on it. I know somethings just wear out, but for the most part, transmissions and rears get wrecked from lack of maintenance and abuse.
I see no problems buying it as long as 2 things, it's not rotted to hell/hacked up, and you know how to work on cars and can do any work needed yourself. If it's a solid good car and you can and will work on it yourself, knock yourself out with it.
My parents put it this way, I want a car, I buy it. For a daily I have a 91 acclaim that gets good mileage but I don't know about crash ratings. It was my grandma's. The insurance with me on my cutlass as the driver, btw, is cheaper than insurance with me on my mom's 95
LeSabre as the driver. Even with such bad crash ratings, and top stolen car lists... It is an older vehicle, it has no collision (they have no value for it, why bother), and the only think keeping it as expensive as it is, is the fact it's a 2 door v8 and I'm a boy. Even so, my insurance costs $800 a year for the cutlass.