Understandably some folks might not want their current photo out, however I don't see any harm in posting a photo of what you looked like when you were a kid.
Post whatever kid picture you might have, but I think it would be very appropriate to include a photo that would include a gun, camping, hunting related, etc.
Here's one of me, rippling with young muscles and obviously open-carrying. BTW I'm not left-handed. :blink: