The driving in Portugal is notoriously bad, yeah maybe not such a concern in your tourist experience in Lisbon center, because you can't really go fast. Get out on the motorways and country roads and your opinion will soon change.

Recording everything has a lot of upsides. Unfortunately, downsides for privacy and democracy are very real.

Talking about speeding, not sure. I am driving around Lisbon and speed limit is 50 in city, and lots of speed cameras. Though I am driving at 55 as limit and rarely see anyone going faster than that.

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.

Take the train instead. It's much better here in europe.

In Greece and Italy they drive at least as bad as in Portugal, if not much worse, and dashcams are perfectly legal.

Maybe they should. But I think there is a correlation between "private citizens can't record other citizens" and "almost no cameras around". Coming from a country with a lots of cameras (where people record each other as well), this is a very comforting feeling.