>>I would feel uneasy about having an adult leader who didn’t have his son in the Troop.<<
That’s understandable, especially if you’re new to scouting or unfamiliar with the program, but some adults start with sons in scouts and enjoy scouting so much that they continue in leadership or support roles after their sons are no longer in the troop (or pack, in the case of Cub Scouts.) Finding effective leadership for scouting programs, particularly in smaller towns, is often a challenge, and some continuity in leadership can make for a much more successful program.
Particularly at the summer camps, some of the best leaders no longer had boys of their own in scouts, but they loved teaching scouts how to fire a .22, shoot a bow and arrow, scale cliffs, etc. They’re natural teachers and love scouting and the kids really look up to them and appreciate their efforts to teach them skills.
Of course, this is exactly why it’s unwise to place a gay person in those very positions; scouts really look up to them and at that young age many would make easy targets for a predator. I’m not trying to imply that most gays are predators, but some are, just as are some heterosexuals, so it makes sense to have policies that discourage predation. Predators do tend to gravitate to places where their prey congregates.
True, I wouldn’t have a problem with someone whose son was an alumnus of the Troop. But just some outsider with no ties to any of the Scouts past or present would definitely raise a red flag....it’s the same with any coach of a youth team.....the coach of my daughter’s teams when she was younger had his daughter on the team.