Good point Ascot....I am 26 single and loving it. I take 4 vacations a year, I come and go as I please, I don't have to ask my husband for permission to dye my hair, go shopping for a few hours or to buy a new computer. I just go out and do those things, and the married sisters would marvel at me.
However to stick to topic, single sisters DO have many issues facing them in the congregation. Especially if the sister is career oriented, intelligent, strong willed, opinionated etc. Then I think the elders feel challenged a bit because thechnically there is nothing they can do to shut such a sister up, whereas if she were married, they can tell the husband to give her a good talking to.
Me personally, I have no desire to marry a jw man and to be his submissive weaker vessel. I have worked too hard to get where I am to now ask permission to leave the house!
And yes the couples only thing was so annoying that I believed it was mentioned and complained about and later dealt with.
Being the ONLY 20 something single sister in the congregation also subjected me with many attempts for set ups. And yes, people really should mind theirs!