Remember that ECs don’t have to be volunteering in the summer in Africa or starting your own non profit helping sick kids thru music.
One of our neighbor kids had an EC that wouldn’t occur to most kids. He wasn’t much into sports or the arts. He was really into cooking so he started catering in the neighborhood for small backyard parties. Really gourmet stuff. Kid goes to Stanford. He was able to show a side of him that Stanford found interesting without inventing a new startup.
Whatever your kid is passionate about- cultivate that.