Originally Posted by Timbo

You don't have to accompany them, right? My 25yr. old daughter travels alone on yield fares all the time.

I thought the Yield Fare is for your family members (kids) who have aged out of their normal (S3 or S2) passes?

The Yield fares are cheaper than the buddy passes, and come up as S3B, vs. S4 for the buddy pass.