This set is designed for children aged 6+, and one of the ways that it is suitable for them is the inclusion of separate instruction booklets and numbered bags for the different parts of the set (see my post about LEGO age range suitability here).  A younger modeller can build the plane or other item of their choice as soon as they open the box. It's not so much one big set as 5 different parts which make a whole scene. My 7 year old son chose to build a jet first of all...
Young builders and adventurers will love conquering a construction challenge and then taking a trip with LEGO City Airlines. This set features an airport terminal facade with control tower, luggage conveyor belt, revolving doors, and security check. The passenger airplane has a door that opens, a galley, and a lavatory, and there is also a luggage trailer, a fuel trailer, a mobile stairway, and an airport service car. Great for inspiring imaginative play, this impressive set can be combined with others in the LEGO City Airport collection for endless role play and configuration options.
The intelligent brick can be programmed using official software available for Windows and Mac computers, and is downloaded onto the brick via Bluetooth or a USB cable. There are also several unofficial programs and compatible programming languages that have been made to work with the brick, and many books have been written to support this community.[52]
Since around 2000, the Lego Group has been promoting "Lego Serious Play", a form of business consultancy fostering creative thinking, in which team members build metaphors of their organizational identities and experiences using Lego bricks. Participants work through imaginary scenarios using visual three-dimensional Lego constructions, imaginatively exploring possibilities in a serious form of play.[73]