<human>: A little bit of backstory, I'm 22 and live on my own in another state, but I've kind of become my family's emotional shoulder to lean on. My older brother who is almost 24 lives with my parents. He graduated college about a year ago and has apparently been having a lot of trouble finding a job. My family is relatively well-off, and my parents are huge about financial discipline. This has been something my brother has struggled with for awhile and it causes some stress in the family. Our parents gave us a loan to get our first car when we turned 18. I chose a small cheep car and paid it back rather quickly, but my brother chose a very expensive and nice car and still owes them over $10k. He decided to go to the University of Alabama (out of state) and has a rather large student loan payment. Since my brother doesn't have a source of income, my parents have really been trying to help him get his finances in order so he can attempt to pay his student loans. My brother said he didn't have enough money to pay back the car, and apparently they aren't really expected him to pay it. When he graduated he spent all of his graduation money getting a $2000 AR-15. Needless to say my parents were rather upset, but they forgave him. Recently, he had about $1200 in his savings, and instead of using it on his student loans, bought a $900 handgun. He bragged about his purchase to me, but then said "Oh, can you do me a favor and not tell Mom and Dad about this." I had a really good chat with him about trying to work on paying back my parents, but he said he will not return the gun. Should I warn my parents about his purchase? I fear he will not have enough money to pay his student loans, and will force them to pay it for him.

Condense the text into a few key points
<bot>: My brother needs to pay my parents and student loans, but spent his money on a gun. Should I warn them?