As @DigitalDad wrote - did you do it so that your kids could get into a “prestigious” college, or because you believed that these activities were good for your kids?
My kid has been dancing from the age of 6, has been at multiple science summer camps, multiple summer camps with the Center for Talent Development, played clarinet for three years, participated in all sorts of summer reading and acting programs. However, neither my wife or I even imagined that any of these things would have the slightest effect on our kid’s college career. We did not really know until she was in high school that colleges considered anything but stats for admissions.
We put her in these programs because she’s talented, super smart, and has a wide range of interests, and school could not provide enough, and we believed that her education should not be limited to the standard K-12 curriculum. Both my wife and I grew up in countries which have no concept of “holistic admissions”, and both of us were engaged in extracurricular activities. My wife took 14 years of violin, art and dance classes, as well as all sorts of other extracurricular activities, none which had anything to do with college. I engaged in extracurricular activities which matched my interests, many which I looked up myself, because my school did not have classes in those topics.
We just were looking through her father’s extracurricular activities in the USSR, and he did mountain climbing, fencing, chess, and hiking in high school. Not for college, but because that was considered the sort if thing that a well rounded student did.
In fact, this is still true in many places in the world.
In most countries of the world, kids do extracurricular activities for the education and pleasure they provide. Only in the USA are there that many people who consider these primarily as methods to be accepted to a “prestigious” college.
PS. I grew up in Israel, and the idea of looking at somebody’s high school extracurricular activities after they spend three years in the military is sort of silly…