I imagine New Kid is not the only toddler out there who likes to play with his mom's wallet.
I loaded up old wallet loaded up with some expired cards and Thomas the Train trading cards. New Kid loves to pull them out and put them back in the pockets. Well, he tries to put them back in. He has varying degrees of success.
The most important thing is that it keeps him entertained.
That and, I no longer wonder what happened to my driver's license.