Hi Maria! Welcome to planDisney and thank you for trusting us to answer your question about rider switch. I can assure you that it is up and running at this time.
Our family used Rider Switch SO much when my children were younger! We went through phases where one of them was terrified of
The Twilight Zone Tower of Terror while the other was just too small to ride Mission: SPACE. And, Rider Switch SAVED us!
Rider Switch is a service offered by Disney to assist families with kiddos who just can’t ride (whether they are too small, too scared, or otherwise). Simply bring your whole family up to the cast member at the front of the attraction and ask if they offer Rider Switch (usually the answer is yes). Then, they will have the adult waiting with the non-rider wait in a designated area and give them a rider switch pass. The rest of the family will go ahead and enter the attraction line and ride. After the family rides, the waiting adult can go back to the line with the rider switch pass (and possibly bring other family members) while a different adult waits with the non-riding child.
If there is another attraction close by that your child CAN ride, you can even take them there to ride while the rest of the family enjoys the first attraction.
I hope this helps with planning your upcoming vacation to the Walt Disney World Resort later this month, Maria. Please visit us again with other questions that arise as you are getting ready for your trip! It's so close!
Happy Traveling,
Tracy