A rumor says children with Down syndrome can’t earn the Eagle Scout award.
Not every Scout can hike and swim, and not every Scout advances as fast as every other. If a Scout has a bona fide medical condition, like Down Syndrome, the Scout can still take the trail to Eagle.
Some Scouts follow their own, customized trail. Alternate requirements need special approval. Scouts can get time extensions in special circumstances.
Caveat: I’m speaking as someone with a lot of experience with Scouting and special needs, and not in any official capacity within Boy Scouts.