Absolutely there are older single guys who’ve ended up in that situation on their own, without having any particular “issues”. Having organized singles events, I’m quite familiar with guys who are now in their 40’s, who’ve been dating since they were in their early 20’s and still are looking for Miss Perfect. I know of one case where a fellow came over to a group of us women at a simcha and said he’s looking for a woman no older than her mid 30’s, because he wants to have kids. Well, hello, if there was no one good enough for him over the past 20 years, what makes him think there will be now?
Sure, I hope everyone finds their bashert, but in some cases, it appears that a certain element is always looking over the shoulder of whomever they’re dating to see if there’s someone better out there.
And that’s just one of the many reasons why some fellows are still single. As many shiurim note, we’ve been victimized by the Hollywood concept of “falling in love”.