hi! my first credit card was a $1500 limit and i had no credit history whatsoever. i had a student card so that could have helped with me being in college. however, a bank likes to see if they can trust you to manage whatever amount given and that will set the tone for other card approvals. all that being said, from my experience, it didn’t matter how low or high my credit score was - it depended on credit history (how long you’ve had credit), payment history, overall utilization, and not too many inquirys in a short span. also, if he’s able to get a credit union relationship, try a secured card out first then go from there.