After a successful gathering with a few of the children of HWM members getting along swimmingly, we've decided to handle our "Legacy members" as follows.
We'd like if children of current members set up their tags as "Gamertag" HWM, with the tag after the name, so that it's easy to tell if there's a minor in the party.
We've given our kids permission to add anyone that they've met in person, so some of you may see invites coming from "mewpew HWM" and "galactibun HWM". As they play with and get to know more of you, it'll be an option to add you as well, but for now we'd ask you to check with us before adding them back.
Different parents may have slightly different rules, but we feel this is a good foundation. As the kids get older, it'll be their decision whether to formally apply and get to move the tag to the front, or whether to drop it and go their own way.