For some stuff, especially airline frequent flyer programs, it is very easy to change your gender. But changing your name? You need to submit documentation for some of them, copy of photo ID etc and sometimes they take some prodding.
I updated two so far, Delta and JetBlue. Delta was important as I have the credit card and medallion status. I am a member of a couple others - United and Caribbean Airlines.
So far gender could be changed on the website. Name required a call to customer service.
I wonder why is that? Nearly everyone who transitions and legally changes their gender also changes their name, no?