DW and I did castmember previews at MK on Wednesday. Have been following the updates this weekend. Felt perfectly fine being back, only because of the low crowd size and social distancing measures. Really enjoyed having an entire monorail car section to ourselves, the lack of busy restrooms and low wait times. As others have mentioned, I am concerned that these low crowd levels are unsustainable/unprofitable. Would hate to see crowd sizes increase, or price increases, but would probably prefer the latter. But when all the resorts eventually open, I don't see how increasing capacity is avoidable.
I was impressed by the mask wearing. Did not see anyone without one, even the children seemed willing to deal with it in the heat. And it was hot. Social distancing seems to be the biggest problem, especially with younger people. This is understandable. Especially in queues that are moving, you get excited and don't realize the people in front of you are slowing down or stopping until you get too close. Or you're just so excited. On some of the rides, like Peter Pan, with some of the twists and turns in the queues it is hard to see the next social distancing marker from where you are.
Only disappointment from the castmember day was that the Peoplemover was not running with guests for some reason while we were there.