Yeah, I read the language on their website and they seemed to be holding a much stricter line. Here the line seems more blurry where :

• in that same paragraph they say “remain voluntary” and “should require”
• “unless strictly necessary” is undefined. Is it all adult contents or banks, insurance and administrative procedure (which already often require IDs) that count as necessary ?
• Do they have solutions for that “privacy preserving” proof of age ?

I am not part the campaign so I’m only trying to guess.

Edit: I have mailed up the Representative of the ECI, I will send an update if i receive a response.