Specifically the state likes to say "We need access to encryption private keys because of terrorists or to save the kids. If you don't have anything to hide, there's no reason you'd oppose this". [0]

So if a lot of bad people pay for things with big sums of cash, then why would you oppose this limit, unless you're a bad person. Meh.

[0] https://www.theguardian.com/technology/2023/may/08/whatsapp-...