Asthma more common in adults or kids?

thanks, I'm asking this since in the days of my nursing school education I havent seen too many adults diagnosed with an Asthma hower once I hit running the peds floor it was an entirely different story..I have seen many kids with asthma so I came to conclusion that maybe as kids grow the asthma becomes less severe and has a milder form/progression than of that in younger years....just like sometimes kids grow out of their allergies as opposite of some kids who used to not have any allergies in their childhood just to discover brand new allergies once they hit an adult years..I guess it greatly depends on an individual....