You assume everyone purchased the iphone 5 in 2012. The iphone 5c was still selling new in India less than a year ago.

Also new ones still listed for sale direct from Walmart it appears: https://www.walmart.com/ip/Apple-iPhone-5C-8GB-AT-T-Locked/4...

If you purchased a new device and in less than a year support is dropped, yeah you might be livid.