Unless you’re the kind of person who enjoys having patchwork pants, I’m sorry to say your jeans are probably goners.
@mcbealer That’s a good idea, but I find iron-on patches to be stiff and uncomfortable to wear, especially on pants. But there may be some good brands of patches out there, I don’t know.
However, that doesn’t mean they can’t be given new life! There are all sorts of fun crafty projects you can do with old denim. You could use the material to make a bag or some other little fun thing, or even cut them up and make them into paper (as long as they’re not stretch jeans, which have nylon fibers in there which won’t make good paper). Here is a website I found with various crafts you can do with old denim.
However, I’m not going to say that patchwork jeans aren’t awesome. I wore my jeans out, patched and repatched them for years until I didn’t fit in them anymore.