It is not crazy at all to inquire of this. I have seen lots of posts along these lines due to the Armed Forces being form of a closed store. You frequently see and now have experience of lots of professions that individuals get into, but it is maybe not if you aren’t near where they are stationed like you can get onto a base to see what happens there or meet many military people in real life.
Did he not need to help keep in contact whilst away, did he state he could not? It is hard not impractical to retain in touch; some places ban utilization of individual phones that are mobile but have actually landlines and issue a phone card with credit, and there’s e-blueys, and make use of for the British Forces Post Office (BFPO) to send letters and parcels into the middle of nowhere (as an aside, if he’s away for a couple months and available to the concept, candies, toiletries and publications are good to send, but check out the rules concerning what exactly is permitted).