Because of my involvement in volunteering for veterans' organizations, most of the people I see on a weekly basis are male and older than I am at 55. I always w*rked and hung out with guys, so no big change there. I brighten many a day by not treating them like invisible people and/or harmlessly flirting with the over 70 crowd.
The actual fundraising events tend to be more age diversified, with immediate and extended families attending.
I do not tend to run into people I used to w*rk with because I am a daytime mover and groover, versus nighttime outings. I w*rked in a windowless building for far too long, and absolutely love to see the daylight, all day long.