My 12 year old son have been asking for a bike for a while from now. So, we wanna buy him a nice bike as chrismas gift. But my wife and I have totally different taste toward bike. She insist to buy this Mongoose Boys' X-Ceed 20" BMX Bike for him. I have to suggest it is not a good choice. But she didn't ever listen to me. So, what should I do? Just let her do it??