I just had conversation with a young relative.  Another relative would like to be referred to as "they" and since they were planning a visit soon, the other relative was very concerned about using the wrong pronoun when around "them".  She felt it was important for "their" comfort level and there is a part of me that agrees, but then I started wondering about the comfort level of others.  Why is only one person's comfort level considered?  Why can't we consider an unintentional faux pas a learning moment handled with grace and kindness?  I REALLY have to wonder about this mom thinking that tossing this information at someone should be met with mild indifference.  How did this mother react when she discovered her child wanted to transition?  Was she perfect?  Probably not.  Here is a script that might work:  "Sally is now Sal and has transitioned and is male. Thanks for asking about the kids.  We're all doing very well."