Arduino could be used for kids at age 6

In wikipedia

https://en.wikipedia.org/wiki/Arduino.

the Arduino was described as designed for "novices" and "beginner hobbyists":

The Arduino project began in 2005 as a tool for students at the Interaction Design Institute Ivrea, Italy,^[3] aiming to provide a low-cost and easy way for novices and professionals to create devices that interact with their environment using sensors and actuators. Common examples of such devices intended for beginner hobbyists include simple robots, thermostats, and motion detectors.

Arduino could be used for kids at age 6,

for example, if you type "Arduino for kids" in Amazon, you will get (you will find the following Arduino kits for 6, 8 and 12 years and up on the bottom):

 

 

If you type "Arduino for kids book" in Amazon, you will get