<prompt> Human: Im 20, in college and my mom wants to get a car for my sister. However, my mom cant do it on her own and she needs me to cosign as I already have good credit because Ive owned two previous cars. Should I cosign? Why? Why not?nbsp;EDIT: Thanks for all the quick replies. Majority rules, so I told my mom Im not going to do it.nsbp;EDIT 2: Fell asleep last night guys, my apologies. Ill be answering anymore questions if asked.  <response>: Dont do it.Your sister can take the bus 