No you can not get a DAS at Disney springs or the water parks.
I have a question about rider swap with DAS:Yes. All riders must get a DAS return-time. Then when it's time to ride, the DAS-holder must be in the 1st party to ride; rider swap will be given to the 2nd party.
That would be my guess as well. Would your son be able to wait with one of you at the boarding area, or at that point does he need to leave the ride area? I don't believe the CMs at ride load would be able to issue an official rider swap but they may allow you to wait with him at the boarding while some of your party rides and then swap as they finish. That is how "rider swap" works for those who meet the height requirement. If he would be bordering on a meltdown and need to exit, I don't think you could get a swap (technically they could deny any of you riding if the DAS-holder backs out but unlikely).Im guessing this might be up to the discretion of individual CMs at the moment?
That would be my guess as well. Would your son be able to wait with one of you at the boarding area, or at that point does he need to leave the ride area? I don't believe the CMs at ride load would be able to issue an official rider swap but they may allow you to wait with him at the boarding while some of your party rides and then swap as they finish.
In the past, we have been asked to leave the load/unload area and wait outside the exit for the rest of our party to ride after he chickened out. I believe they do not allow anyone to wait at/near the loading platform due to safety reasons.
When he gets cold feet, he will express it by pulling on me (he's nonverbal) and attempting to leave. If that were to happen, my partner could probably ride while I comfort my son...FAR away from the queue. I was just hoping there could be some way for me to ride afterwards since we technically have already waited the entire duration of the stand by wait time. If not, it's not a huge deal for me. I'm used to missing lots of things over the years due to autism. lol