>>11551661
NPD and other research companies do surveys every week/month, so they know the statistics, hence knowing 60% of action figures being for kids 14 years old and younger.

If there's a more specific survey for Marvel Legends specifically, it either doesn't exist or no one has ever talekd about it.

Here's one for GI Joe from back in the 00s, which Hasbro themselves said had the biggest oldest demographic out of any children's toyline back in 2010 or 2011