Not that I think this is typical, but the only alumni who attended Homecoming activities at my high school were those who had graduated the year before and hadn’t left town to go to college or something. Class reunions were organized individually, and the only thing the school did was help out with lists of alumni and that sort of thing.
I think maybe it might depend on if Homecoming took place during one of the college breaks.
Typically our reunions were held Thanksgiving weekend (presumably because that’s when a lot of alumni were expected to be in town visiting family.
None of mine have been, either. All but one* were held in the summertime; I graduated from high school in '83, and our 25 year was in the summer of 2008, the 30 in the summer of 2013, and the 40 in the summer of 2023.
This has been my experience, as well. I went to a small Catholic all-male high school, and there were only about 75 guys in my graduating class. Through forty years, we’ve had eight whom we know have died, and another ten or who so have completely dropped off the face of the earth, to the point that even the alumni office has no current information for them.
Of the 50+ for whom we have contact information, about 35 attended the 40-year reunion last summer.
*- A couple of guys threw together a 5-year reunion, which happened over the Christmas holiday in 1988.
Yeah, I took it as hooking up and dating your old classmates at your high school reunion.