It's not really the same, they don't have anxiety like "what happen if I click here?" and stuff like this. They don't have any supposition of how things are working or not working and what supposed limitation/ability they have. Nowadays children seems to see computers and other hi-tech devices as kinda "normal".
A recent example with my little step-brother: he had no problem whatsoever to use the trackpad and click buttons of my laptop to choose another Thomas or Beyblade episode on YouTube. Three years old. And he only saw me do it a few times and then I wanted to read my book without being interrupted every 5 minutes so I told him "use the trackpad, it's this stuff here, use your finger on it and it moves the cursor here [I'm pointing my finger to the cursor on the screen]. When the cursor is on the images of the video you want to see next, you click this button [I'm pointing my finger to the left-click button]". He didn't even asks any other questions. He still interrupted me every 5 minutes but to show me that he just launched the new video by himself... :-).
To emphasize my point, it's not him who is particularly able, his older brother, who is five years old now, was exactly the same at his age.
Also video games. My old parents have a hard time to figure out a new tv remote. And computer stuff is overwhelming. They have no concept of a "menu" or "selections" or "radio buttons". That is a huge conceptual hurdle. But since the 80s kids grew up with Atari, Nintendo, Playstation etc and learned with button smashing to figure out complex UI (every game behaves and looks different).
Children are people for whom everything is new. Their brains are geared towards rapid absorption of new experiences and learning by exploration.
Older folks are better at analysis and strategy but have a tendency to see things in terms of what they already know. After all, for most of human history, once you learned how the world worked it didn't really change much for the rest of your life.
Not even then. My kid was 6 weeks old when I first put the iPad in front of him. Babies get visual feedback right away, especially when it happens right a the point they're touching. It took maybe 30 seconds of training before he was pounding on the screen to make stuff happen.
This was even before he figured out real world things like stuffed animals.
A recent example with my little step-brother: he had no problem whatsoever to use the trackpad and click buttons of my laptop to choose another Thomas or Beyblade episode on YouTube. Three years old. And he only saw me do it a few times and then I wanted to read my book without being interrupted every 5 minutes so I told him "use the trackpad, it's this stuff here, use your finger on it and it moves the cursor here [I'm pointing my finger to the cursor on the screen]. When the cursor is on the images of the video you want to see next, you click this button [I'm pointing my finger to the left-click button]". He didn't even asks any other questions. He still interrupted me every 5 minutes but to show me that he just launched the new video by himself... :-).
To emphasize my point, it's not him who is particularly able, his older brother, who is five years old now, was exactly the same at his age.