<human>: Sorry this is kind of long... So I found out last month that the state is taking out thousands of dollars in back child support of my dad's refund check for his wife's two adult sons (23 and 26). I guess they just filed for it last year because this year is the first it's been taken out. I mentioned this to my grandmother and now she is all fired up wanting to file for my back child support ($21,000), however I'm having some reservations. I have a 5 year old little brother (I'm 23) and if it weren't for him I probably would not talk to or visit my father. My father and I never had the greatest relationship, but since my brother was born I've been working on that with him and we've actually made a lot of progress. I know that my dad and his wife have had nothing but financial problems since my brother was born. He's almost 50 and can't keep a job longer than a year or two, has nothing but bad luck with vehicles and they've lived in his mother's basement for 4 out of the past 5 years. My father also has a gambling problem which definitely doesn't help their financial situation. As nice as the extra money from the back child support would be, I feel that any money I would get would be taking away from my little brother. I'm in college but my husband makes a decent enough wage that we have a nice little savings and never have to worry about paying bills on time or having food in the fridge. I feel like any money I would get would just go sit in our savings account while they could actually be using it for food, clothes, bills, etc for my little brother. Also, I'm afraid it would put strain and tension on my rebuilt relationship with my father and I wouldn't be able to see my brother as much. I told my grandma I wouldn't go through with it, but she says my mom could still file for it without me. What should I do?

Can you give me the gist of the text in a nutshell?
<bot>: My mom wants to file for back child support from my dad, but I'm 23 now and feel I would be taking money away from my 5 year old brother.