private ids where always the scope of the privacy movement. However, it may as such present other challenges which can include age based discrimination. It as such must be implemented wisely.
Age is already being weaponised against us (child protection, etc), this shouldn’t be like that - We can already see what kind of power governments hold. Ageism is what will ultimately destroy us.
It is becoming more aware that discrimination is rising rather than falling in this society. Laws like this explicitly increase the ageism within the society, and like all other individuals teens want to be treated equally; and do what they consider is ethically right.
Such laws will never stop underage viewing, as even in the mode discriminate society it is safe to say options are deemed to exist. And like adults which prefer to use legitimate stuff, it is naive to think teens will be absolutely willing to be stripped off their rights when the legitimacy turns hostile.