This is a precious PSA for ESRB ratings
Unlike, say, in the UK or Australia, the American ESRB provides game ratings based on age but is not government-sponsored, and so a lot of folks don't pay too much attention to them. Thus, we get young children playing Grand Theft Auto, and so on. The ESRB is trying to build awareness, then, with this totally cute little PSA.
Having kids is a breeze thanks to the ESRB.