To be fair it is a pain in the ass… but i'm sure having an AI do it would make things worse :D
Most people use their personal email extremely sparingly and it is inundated with promotional / account-related materials which are already handled rather deftly by most mainstream email providers
Sports communications at most travel/rec leagues is via group chat / Whatsapp / FB group.
And as a bit of anectata: I play two sports and my child plays multiple. Every single one of those groups or teams relies on email, even when other modes of communication are layered on.
But like, an AI would just tell me what’s in the email and ask me what I want to do about it which is almost always ignore it and I know what’s in the email because I have eyes.