Am I in Cheerio Heaven?

This afternoon Joel and Grace were playing house or what they call 'the mom and dad' game.Lily was in her car seat watching.I believe she was 'the kid'.When Joel and Grace left their house area Lily raided their Cheerio bowls.Now what mom and dad would leave their kid alone home like that unbuckled in her car seat?I'm not quite sure that is good parenting.Of course,Lily did not mind...