For Mac OS users, there is a system setting that may not allow you to tab onto several types of elements in a web page. To change this setting:
KCTC
Google form link for the KCTC parent consent form for conferences:
https://forms.gle/wkjxytNv38QDgmrG7
MySAEBRS
MySAEBRS parent consent form for conferences:
https://forms.gle/QQcmgzGmuiAi3Zgz6