u/Few-Tomato-6142

I got an email today that me and my 2 daughters all received complementary upgrades on our flight Saturday.

I did not request them and am surprised because I didn’t expect to be listed for an upgrade since I was traveling with more than 1 person on the reservation. It also isn’t a split reservation.

All 3 of us are also listed for complementary upgrades on the return

I’ve been flying AA for a long time and have never seen this before

Does anyone know how/why this happens?