Just got back on Sunday and it was no hit and miss. Every park, every day, every adult that entered the park needed to scan. Please remember to carry your ID with you to the parks. If your scan doesn't work, which I can't tell you how many times we saw that happen, you will need your ID to prove who you are. We actually saw them turning people away if they didn't have ID with them. They then had to go all the way back to their resorts to get ID and try again. Interestingly enough, you could go all the way back to get your ID and when you try it a second time it will let you through. Myself, it didn't work for me one time, (I had a nice CM who just asked my name and let me in) but worked for me the next.