FIFY
Most normal shooters, even those that train/practice with them regularly, will never wear out a gun. Those of us that own many and like to rotate through them, even less likely.
That is wear out a gun, not break a gun. Breakage can happen at any time and any round count.
Also note that I said normal shooters. That does not include people who like to mag dump. That does not include people that use their arms professionally. That does not include people that shoot their guns competitively. That probably doesn't include people that shoot the cheapest and dirtiest ammunition possible, which likely contributes greatly to the wear and tear of their firearm.
I couldn't give a crap about what can be done, or what you do, regarding gun lubrication. I said I'm not going to do it. Proper gun lubricants are cheap enough that buying it is a non issue.
I'm not going to get into openly judging your choices. Just accept that we're different type of shooters and gun owners, but don't assume that it makes me any less of one than you are.