Talk to elder members of your family (grandparents, parents). They are maybe 60+, 70+ or even 80+. Ask them about obstacles which they have to face on the daily basis. Prepare questions before the interview.

Try to be emphatic and understand their limitations.

What are the conclusions? Have you noticed any common platform of problems?

You can confront it asking other elder people from your surrounding (neighbors, friends’ parents).

Do they have similar problems?

Do you have any idea how to solve it? Maybe that is an idea for an innovation.