Ever noticed how Adrien has almost everything in his room? Skateramp, dance machine, zipline, basketball court, rock climbing wall, enormous CD collection, foosball table, triple screen computer, etc? What if...
Adrien kept making excuses to leave his house, but Gabriel got him the stuff instead of letting him leave?
Adrien: Father, can I go to the court and play basketball?
Gabriel: No son, the court comes to you! *installs a basketball court in room*
Adrien: Father, can I go to the skate park to learn how to skate?
Gabriel: No son, the park comes to you! *installs huge skate ramps*
Adrien: Father, I want to learn to dance!
Gabriel: Here ya go, son! *installs dance machine*
Adrien: Father, can I go out to go ziplining?
Gabriel: *snaps fingers and a zipline is installed* Here ya go!
Adrien: (frustrated) Can I go rock climbing??
Gabriel: No son, the rock comes to you!! *snaps fingers and makes rock wall appear*
A few days of this later........
Adrien: I GIVE UUUUUUPPP! *flops down on the super luxurious bed*
Gabriel: Have a nice day! *leaves, smirking*
Adrien: (exactly like a Disney princess) *sobs on the bed* WAAAAAAAHHH! I'm never getting ouuuuutttt!!!
And that is my theory on Adrien's room.