Answer:
The enduring issue is the cost of things increasing over time.
Explanation:
The enduring issue is significant to Adrian because his grandfather used to be able to get a sandwich and apple for 5 cents. Adrian could get a soda and turkey sandwich for 2 bucks. The price for that is now 7 bucks, which is super overpriced. I wouldn't want to pay that amount for a soda and sandwich. It's simply unfair in my opinion.