Why Does Kevin Hide His Kids?

On Sunday, Sean and Jayden made a rare trip out of their dad's Tarzana home to visit Britney at Promises. Although we could see Sean in his carseat in the back, Jayden was carefully hidden by a blanket. Was it to shade him from the sun or is Kevin still hoping to sell pix of their younger son to a tabloid for big bucks (despite the fact that we snapped Jayden in the studio with his mom months ago)?

It's only natural that Kevin would be protective of his kids as they go through this difficult time, but is it healthy for two young children to be kept inside 24/7? Even the windows seem to be permanently shut. Clearly, Kevin's doing his best in this situation, but kids need fresh air and sunlight!