You are in a new country and feel that your kid needs protection, which is perfectly human, but does mean that your opinion is a bit biased.

As sibling comments mention, countries exist with many cameras, public or private, where driving feels worse. I didn't look at road deaths, but I'd be surprised if Portugal is among the leading countries on this.

Equally, if you take a bit of distance, you can realise that Portugal has many other parents living there, yet they are not clamouring for more surveillance: it's difficult to imagine that the Portuguese dictatorial government is evilly preventing its people from accessing the benefits of surveillance.