- safe to play (a sport that is less prone to involve injuries)
- fun (nothing that attracts aggressive coaching or aggressive parental spectators)
- athletic, meaning a sport that involves a healthy amount of exersize and physical activity
-> Example: golf is not athletic enough for my standards
- outdoors (so they can enjoy the "fresh" air, sun (with an appropriate sun tan lotion),
-> and also hopefully where kids can enjoy a bit of nature (trees and or lakes, rivers, or even creeks), grass (hopefully not artificial turf).
- Example of a good sport that _doesn't_ fit my criteria: Competitive waterpolo, which may be a summer sport, but the swimming pools (which are large and specially sized for waterpolo) are usually indoor facilities.
更新1:
Correction: In the "fun" criteria, I meant to state that I don't my kids exposed to sports that attract aggressive people.