When you say, “my wife always yells at me” I know by context what you are saying, because I’m an adult. Adults understand things like context and the subtleties of language, but we also teach firearms safety and handling to children, who can be very literal.
When teaching a group of cub scouts about firearms safety, and the very first rule you cover is “All guns are always loaded” you get questioning looks, because even at 8 years old some of them know you are lying (or, if not lying, at least not saying something that is true.). Then they start asking questions about it and you end up explaining that, obviously all gun are not always loaded but that we need to treat them like they are for safety reasons until we have verified ourselves whether the weapon is loaded. Now you have started a safety lesson by contradicting yourself and the PowerPoint slide on the first rule.
So for me, while I understand the concept behind the “all guns are always loaded” language, I dislike it.
As a slight aside, when teaching adult police officers, many who have never held a gun before the academy, we have gone away from that wording altogether and gone to “know the condition of a weapon and verify it” (which we stole from some trainer somewhere.)
This also helps avoid wording issues in a structured rank training facility. You used to have a Lieutenant come in and teach the 4 rules, and even some adult police cadets take the LT’s word as absolute gospel. Later, when getting ready for drills, you ask a cadet if their gun is loaded and you get “All guns are always loaded, Sir!” as an answer. No man, it isn’t a trick question, is your gun actually prepared for the next drill?