Thanks for the help but TurboTax won't let me get to the education credit page. Just zaps to the wrapping up tax credit page. Inputting "letme" is also only giving me a bunch of vaguely related help pages.
Then you are not doing it right. See this help article:
It should take you to the "Education and Credits" section and ask if you want to change your deduction.
You are not required to claim a credit that your are allowed. But not claiming it doesn't allow somebody else to claim it. For example if you are the parent that is allowed to claim the credit, you cannot forego claiming it to allow the student other other parent to claim it. They must qualify. The general rule, if you qualify to claim it; they don't qualify.