Education is becoming increasingly more expensive, housing is often a large contributor to that.
Seniors on the other hand often feel isolated and alone.
A Dutch retirement home figured out a way to help both students and seniors. The Students get free housing in exchange for providing support to the seniors through various inter-generational activities along the lines of computer help, conversation, birthday celebrations, etc.
Check the video here for more details.
See also: Wire the Wise for another example on intergenerational engagement.