My eldest child (23 year old non-binary) and I (43 F) attended a concert recently to a band that we both love. My eldest has several physical medical conditions, has a shorter life expectancy due to this and finally needs a wheelchair to do about anything outside of our home. Their mental state is fully functional for someone their age still.
We attended an incredible heavy metal concert recently and due to them being in a wheelchair, we had ADA seating. We arrived super early and spent extra money to get early access. Due to this we were in the very front of the ADA section. Behind us I noticed were two people with a young child (4-6 years old with ear coverings). The kid was really well behaved and really seemed to enjoy the concert too. They even got up and danced in a spot next to us that was open and my eldest and I honestly did not mind at all. At the end of the concert (Which was incredible), a guitar band member threw a guitar pick towards us and it landed just near my feet. The young kid was standing next to us at the time, but I honestly thought it was for us so I picked it up and handed to my eldest to keep. Not within 1 minute did that same guitar member come down and personally hand another guitar pick to the little kid. Suddenly I realized that the pick that was thrown early was probably ment for the kid. I looked over at my eldest and I knew right away that they felt horrible about what had happened. I honestly did too. Both of us are super sensitive about certain things and we felt horrible realizing that the first thrown pick was for the kid and we took it. I turned around and tried to apologize to the parents, but it was still really loud and I do not think they heard me because they never gave us any acknowledgement or eye contact. I honestly think it was just still super loud and them not ignoring us.
We did decide to keep the pick since the young kid did get one too, but my eldest told me they felt horrible about the incident. I still feel horrible, even though it is now the day after the concert. I have not told my eldest my feelings, and I have honestly tried to reassure them everything worked out. AITAH.