This law could be brought down overnight by Meta if they introduced age-control for WhatsApp and suddenly people couldn't message their own children.

But of course Meta carved out their own exception in the law, so this law benefits Meta at the cost of alternatives.

I think that's kind of the joke as well, because WhatsApp (being totally unmoderated and opaque) is probably the exact place you'd want to enact age controls, especially in groups.

It's like the government thought long and hard about how to make the restrictions the most inconvenient and with the largest number of gaps in the approach.