Our family loves single rider lines. You may get split up but may not. Most of the time, regardless of the attraction. We don’t get split up. I don’t think we ever have on TT. When they place you just kinda look at the line and it’s easy to get everyone in the same car. But even if not it’s not an issue. You really don’t get split up. Some may just go one car ahead or behind you. I go first and wait for everyone else. DL has more single rider lines. The Matterhorn May have an hour wait. Our family will get on in 10 min. Doing single rider.We’ve had various experiences. What works best for our family is getting a FP for Soarin’ and doing single rider for TT. We are all out of the ride within 5 minutes of each other. Sometimes we’re even in the same car.