Throwing this out there for the Challenge Team. Would you consider adjusting the rules so that somebody who doesn't have the Generations EP can participate? The only change would have to be for the aging up criteria for infants. Potentially, the criteria could be something like, must complete 3 caregiving activities (infant takes a bubble bath, infant discovers a food they like on high chair, etc., etc.,) which would be functionally similar to achieving 2 milestones.