Getting a BCID is especially important if you don;t have a driver's license. BCID cards are typically used as identification in any situation where you might use a driver's licence.
Children under 12 year of age are not required to get a BCID. Getting one is quite easy. Just bring a primary ID and a secondary ID to any BCID office and have your picture taken. Fee for a BCID is $35. Process time is from 4-6weeks. :)