On the move?

My mother asked me a few days ago if I would move in with my grandparents - they are getting too old to live in their house without serious help.  My grandfather cannot walk and has to get help to move from his wheelchair and his bed (which are the only two places he really goes.)  My grandmother cannot lift her arms above her shoulders - and she's 5'1''.   Both fall on a semi-regular basis.  They should probably move into an apartment designed for seniors, but, due to some unwise decisions and a reverse mortgage, they cannot afford to move out.  Both my mother and my uncle go over and spend time helping them get their house decent - my mom did 2+ hours worth of dishes last Sunday - but I am not sure if that is enough. At the same time, I am not sure if I want to live there.  As I'd be a free boarder, I'd be expected to go and help out - a lot.  I'm not sure if I will have the time, what with the 2-3 honors classes I'm planning on taking and (hopefully) a job come spring.  The other issue is that I would need to adjust my standards for both food and hygiene.  I've never had to cope with moldy bread or rotten vegetables to any great extent.  These are the norm at my grandparent's house.

Conclusion: They definitely need help, but I'm not sure if I'm the one that can give it.