My grand-uncle has told me stories of how his father taught him how to shoot, and how common it was for men and even women to be carrying guns. In many movies from the golden era of mexican cinema you can see women wanting to marry soldiers, children wanting to be soldiers, or soldier being a prestigious profession in general.
But today, in my experience, almost no one knows how to shoot nor owns guns, and while no one disrespects soldiers, no one idolizes them.
I imagine this change is due in part because the revolution happened, and we had relative peace since then, but still, Russia has been at peace for a while and it is still very militaristic, so there must be more to it
Edit:
I just want to mention that while my grandparents and other old relatives have told me many stories of when they were little that make it seem like everyone had guns at no point I got the impression that they missed guns, nor were they resentful that they didn't own guns anymore.
I started wondering if this change was planned by the government, or if society collectively decided to move away from guns, so I asked some of my old relatives if they remember a government campaign against guns or something like that, they told me they remembered the army started buying guns from people at some point but "it wasn't a big deal"
Edit:
I've given up, no one is gonna answer this and is gonna bother me forever.
So to preface, I don't know the answer, and in some ways I would ponder the accuracy of the premise but as this has been sitting unanswered for a time now, and I do at least have a sense of where to look, I thought I would offer you some pointers.
Your question really plays into three related, but also independent, factors, namely the popular image of the Revolution, shifting ideas of Mexican masculinity, and the conception and image of violence in Mexican society. My own interests to this topic is tangential at best and ends with the Revolution, finding the conflict itself fascinating, but also attracted to the late 19th to early 20th century due to the expression of elite violence in the form of the duel and honor disputes in Mexican political society of the period. It is definitely related, as I can speak to the use, and threat, of violence was used as part of the construction of masculinity for Mexican elites in the fin-de-siècle, which absolutely forms part of the foundation here, I just can't speak to the latter 20th century and the shift. But, I can recommend you some excellent books that tackle the three themes I highlighted above, some singularly, but also in conjunction with each other!
The Tyranny of Opinion: Honor in the Construction of the Mexican Public Sphere by Pablo Piccato: This is going to be background, as it focuses on the late 19th century, but it is an absolutely invaluable book for me in its focus on elite masculinities and violence in Porfirian Mexican society. Highly recommend it just generally!
Violence, Coercion, and State-Making in Twentieth-Century Mexico: The Other Half of the Centaur edited by Wil G. Pansters: This is an edited collection with a wide array of essays covering different aspects of, well, exactly what it says on the cover. Several I think would be relevant here, and I'd specifically highlight the essay "Policing and Regime Transition", as it speaks to all three of the themes at points as I recall.
Cinemachismo: Masculinities and Sexuality in Mexican Film by Sergio de la Mora: This looks at popular presentation of Mexican masculinity in film, including (but hardly limited to!) the Revolution. I would pair this with Constructing the Image of the Mexican Revolution: Cinema and the Archive by Zuzana M. Pick, which obviously looks much deeper specifically at the Revolution, but as I recall doesn't focus too much on masculinity.
Modernity and the Nation in Mexican Representations of Masculinity: From Sensuality to Bloodshed by H. Domínguez-Ruvalcaba: This is most squarely just looking at masculinity, and the final chapter focuses on violence.
Modernity at Gunpoint: Firearms, Politics, and Culture in Mexico and Central America by Sophie Esch: I think this one might be the best for you if you can find it. Haven't read it myself, but found it checking to see if I had my bases covered, and it only just came out last year! I did give it a quick skim, as I was thinking maybe it would have the answer front and center to write up something proper, but I think it will be too nuances to really answer without a deep read, but based on glancing through, it definitely has several chapters which I think will be of interest here, so couldn't not make mention of it.
Again, none of this is a clear answer, but I think it should offer some useful avenues for investigation to trace the threads necessary to construct one. Hope that helps!