Actually, you should have no trouble
We're very picky with the "younger" couples that we might have an interest in. But, that is due to a bad experience.
It all comes down to the same thing you heard through high school. You're not mature enough yet. Or at least some couples aren't. And it gives the whole group a bad name.
There are exceptions! So don't take any of that the wrong way. You just have to make sure your interest are real, and expressed.
By expressed, I mean be mature enough to lay out your expectations/requirements without embarrasment.
Example of what not to do!
Don't wait until you've gotten a couple into your bedroom to let them know you're only interested in stuffing oranges up their butt. That's a bit extreme...but it gets the point across.