It never gets old...
To recap, I am opposed to the My Number system in its current form for two reasons: I don't believe the Japanese government is competent enough to handle the information securely, and it appears the government is also trying to expand this far beyond a simple tax/social security identifier. We've seen talk of using it to track shopping, for health care, for ATM use even.
So far I have been asked to submit my personal identification number ('My Number') twice: to my employer and to Rakuten Securities. Both requests were pretty low-key. There was no deadline for either and both were phrased as requests to 'please submit your information and sign this form giving us permission to administer your details'. My employer also asked for my wife and daughter's numbers (they were my dependents for tax purposes last year although won't be this year).
Of course I ignored both requests. My current thinking is that I will give My Number out when they pry it from my cold, dead fingers (or at least when they come up with some way of penalizing me for not submitting).
For Rakuten Securities, it seems that current account holders have some latitude here, but they are asking for people to submit the My Number information in order to open a new account. I get the feeling that failing to do so will result in the application being rejected. Anyone try this yet?
So there we have it. My Number use still relatively optional given the lack of penalties for both individuals and companies that don't/won't use it, although it will also depend on your relative position of strength with regards to the institution asking for it.
Of course I still hope that everyone will refuse to participate and thus bring the system down. This is what happened to the JukiNet system about ten years ago and I hope this new attempt will also go down the tubes (or at least be reformed and have some concrete limits defined in terms of how it will be used). Non-violent resistance FTW.