Reasons to NOT be a dev sounds rather negative so I'd like to propose 3 things that you need to BE a dev as to frame it in a positive light:

- When a problem peaks your interest you want to solve it, you may even be obsessed by it.
- You enjoy learning, not necessarily enjoy school, just enjoy learning new things (even better if it's by your own means)
- Failure may get you down, but you learn and don't give up until you have exhausted all paths to success.

You may need other skills like math, logic and reasoning abilities, being able to handle deadlines, attention to detail, and cope with stress. I've seen people being crap at all of those and if they have the former 3 they, in time, will hone the others enough to make them a productive dev.

No need to be a 9-9-6 code monkey willing to be squeezed by Big Corp for massive profits and a low salary or a 1337 purist coder that only focuses on the crafting side of developing software. That may make you a great coder but not a well rounded developer or individual. Remember, you program machines but you are NOT one.

You seek persistence, stability or want to know what you'll be doing 20 years from now.
You like variety
You want to socialize