As someone that has had alopecia aereata in the past, I will get my hopes up! There are definitely worse fates in the world than alopecia aereata, but not having people ask if I intentionally shaved a random section of my head would be nice.
Best prevention I've found is to minimize stress levels, though. Haven't had any issues since I left my old job a couple years ago (used to find a new bald spot once every few months).