My two brothers and I would often ride our bicycles out to a local shooting spot just outside Tucson's eastern city limit to go shooting. We each had a .22 rifle and I would also have a .32 Beretta. Got stopped by deputy sheriff once, who wanted to know where we were headed. He came by the wash later to give us some pointers. I was 16, and my brothers were 14 and 12.
Until concealed carry was legal we just open carried. No problems, no panic in the streets, no harrassment from the police.