What’s wrong if singles meet at a simcha (if done appropriately)?
Oh please give me a break only bad can come out of mixed seating, we have shadchanim for dates.
No one will tell you that shadchanim are doing a bad job, but there is still a Shidduch Crisis that needs to be dealt with. SJS & Oomis correctly point out that a Chassuna is a good time to have these unmarrieds meet (after all, they are already all dressed up:)
On the other hand, So right & holtzichfest correctly point out that our immature children going on shidduch dates can not do so without having someone holding their hand and watching.
So the solution is to have a third section. One for men, where they would dance. One for Women, where they would dance. and in between, a section for friends of the Chassan & Kallah, together with some “shaddchanim” (perhaps mutual friend couples), who can try to “match” the unmarrieds.
In a table of 12, we could have two couples, four girls & four boys. That way the unmarrieds would get to meet, and perhaps be “set up” by one of the couples.