We will probably be moving fairly soon after our son Chris enters the Navy, (downsizing to a smaller house because soon after he leaves his brother will also be leaving). Then we'll probably be moving again a year or so after that, due to my job. We're as likely to move to another state. We've moved 18 times in 20 years in 5 states, and I don't expect that pattern to stop.
I know the Navy uses the address where sailors lived when they enter boot camp as the "address of record," sailors vote according to their address of record, and there are other things attached to that address, including taxes.
If we move to another state, what state taxes will he pay and in what state will he vote, especially if he's stationed overseas (Japan will be #1 on his dream sheet) and has no non-FPO US address of his own.