This whole blame segregation thing might sound logical but the reality that I’ve seen around it is quite different. On a community level, the gatherings that are taking place are mostly non-segregated. So you have more people attending those types of gatherings. But you don’t see people who attend them getting married sooner than those who attend only segregated ones. In fact it looks like the reverse happens more often. In fact, out of our community, I’d say those who are more strict about segregation are mostly all married. The people I know of who aren’t married by now (out of the same age range etc.) are people who aren’t into segregated events or aren’t strict about them.
This does not stop people from getting married. It’s more about networking than anything else. A lot of people will mention to the responsible people of the masjid that they’re interested in getting married, so keep an eye out for someone suitable. Quite a few people I know of have been married in this manner.
Or perhaps they already know the said guy(s) wouldn’t like their friend and or vice-versa.