Thank you so much to everyone who took the time to respond and educate me about impact. I was definitely thinking that impact had to be something measurable like an amount of money raised, or people directly taught or recruited, or systems overhauled/improved. The good news is that these two ECs are very important to my son and he will stick with them through graduation and who knows, maybe beyond. It didn’t even occur to me that he could ref while in college.
I’m very grateful for all of your kind and encouraging replies.