Allow - yes. Encourage - no. Sometimes my DH will play on the weekend. If DS2 sees DH playing, he'll ask to play the race car game. I'm not sure what it's called. I think we have an XBox 360. It doesn't bother me that DS2 plays this game with his dad. It feeds into his love of *wheeled* things. DS2 enjoys selecting the make/model and attributes of the cars. He also enjoys purposeful crashing.