Well, two of my adult kids have been having this conversation with 2 friends. The two friends think this is great! They're confident that it will be age-appropriate...kids ask questions, they need to know there are all kinds of "families" etc. They have ceded the entire idea of childhood innocence years ago. They'd support it if it came to their schools.
Yet when they were told that they may be right in all their observations but that this mandate by the Chicago disregarded parental rights-- in that some parents may not want their children taught that yet-- they had no response. They stopped responding I guess until they can think of something. The interesting thing about this conversation is that as typical libs they kept trying to go off track because they're not used to staying on point and arguing only that point.