I can vouch for the 452 Scout, bought one on a lark because the price was right. Handy little rifle.
I almost bought one myself and although smallish, an adult can still shoot it reasonably comfortably. My thought at the time was compact "survival rifle". Then I figured.... why do I need another 22 rifle when I have a pile and what am I going to survive anyway. For info, 22 mag is my chosen "survival rifle" caliber. The CZ is a premium 22 rifle for young shooters and one they probably won't grow tired of.
Added: To this day, I still wonder why my Dad allowed me to get a semi-auto 22 rifle when I was 14. It just sort of goes against the grain a bit. But it worked out. Sure, I and my brothers did some fast plinking and playing around. But the majority of the shooting was very controlled. Dad did not make a mistake.
I agree that a 7 year old should probably not have a semi-auto 22, but kids grow up and unless you want to be buying another and another 22 rifle, you choose something that will stand the test of time.