Hi,
same question of Sarah. I was one of the fellows over 40 years, as well as Alfredo Calderon, and several others.
IMHO, people over this range of age have more time to engage in this kind of tasks, unless they are also engaged in any part of the community as workers. I mean, if you work for a RIR, any Internet association, a University Professor, a Govermental employee in a Internet Governance office, a Law firm interested in IP, or a Registry or Registrar, part of your job will be ICANN. Your boss will now who is ICANN, and most times will be happy you are there.
If you are a volunteer in ISOC or at any other Internet related association, or an Individual member, you should have a regular job. Under 40 years you are in your most productive time, usually with kids in their scholar process. Taking 7-10 days to assist to a meeting, and if engaged, time to do so, doesn´t sound feasible.
For the At-Large community, most of its dedicated members came from the second, not from the first. You can check ALAC, very few exceptions are under 40. This age top, will affect us mostly.
Kind regards
Ricardo Holmquist