<p>Great system Charlie 
Also, having them linked to yours will be reflected on their credit history, as long as they’re an authorized/joint user. It’s a GREAT help to them, trust me!</p>
<p>Credit card companies have ones specifically tailored to students. The Citi Forward Student was great when I got it, I got 5x points on bookstores (including amazon!), food, and groceries. It worked out great since that’s a majority of what I was buying. I’ve held onto the card since it’s $0 fees, but have been able to get other, better rewards cards due to that longer history.</p>