Yakuza bosses struggling to upgrade phones from 3G
soranews24.com
soranews24.com
Obviously, the higher echelons of the yakuza have businesses setup that will provide them with whatever they need.
The ones who are really excluded are the local, small gangs, that are hired by the big bosses to run jobs. The big bosses won't provide street thugs with their own SIM cards.
Certainly by the early 00s most of my then-teenage circles had IDs sufficiently plausible to get past bouncers into bars. Arguably anti-fraud has improved since then with holographic threads, stuff that reflects certain wavelengths of light etc.
But also all that is still limited by the bouncer weighing have to get the stuff out to check it versus feeling it's good enough they won't get in trouble for letting someone underage in
But if you can clone one…
I guess in Japan it’s a badness to have someone else register a phone for you.
I’m also guessing Japan doesn’t have ubiquitous wifi, but not sure on that.
They do have "free" WiFi (usually limited to an hour), but you still need to register... usually by using your phone number (and of course the "anti-social forces" declaration (formal term for them) is in the terms and conditions).