and at some stage, someone there will see your TM30 out of line and fine you. This is why now, i just do it. I won't listen to them anymore. The TM30 office themselves, never, ever refuse it.
That's the reason I don't take there word for anything there. None of them would ever put there hand up and admit telling you not to do it.
I would imagine they are difficult to obtain because they are not for temporary visitors.(Holiday etc) As a foreigner, if you leave the country, you have too return the card. You need a permanent address to even obtain one.
From Time spent in Japan, a certificate of Alien registration, put simply, was kind of having a pink Thai ID card. Anybody staying longer than 90 days, except military personnel and some others, had to register.
The cards were municipalities issued. It changed around 2012 to a National issued and registered card.
There isn't much you can do without a card. Even buying a mobile phone etc you need one.