Is there more work? More stress? Will it be difficult going from being one of the oldest middle school students to one of the youngest high schoolers?
They want the best for them, and many will do whatever they can in order to get good results for their kids.
This can include signing them up for private tutoring in order to give them a bit of help if they seem to be lagging behind their classmates or not doing as well as they might like them to be.