It covencedThere wasa lunch party for solitary[lonely?] old people at my work place today.

There were lots of people;it smelled like a grandparent's house:)

It's so difficult to explain the smell like what..what it smelled like ...

It's like poultices or incenses or something.

Anyway it's an old familiar scent of my childhood.

But then, I wonderthought / realizedthat the old people who live alone in their house must be uneasy

Japan is theacountry in which society is aging.

I think what families live with grandpa,grandma,parents and children is very important thing.[I think it is important for families to live with their parents and children.]

Honestly, if I got married tosomeone and wehadvery different personalities or life style with his parents, it might be so difficult...:(

But then I realized that it must not be easy for old people to live alone.(I tried reading your sentence in Japanese and think this is a more natural translation.　Also、 "must not be easy" may also be "must be hard.")

I think it is important for people to live with their parents and children.(Or you can say: I think it is important for families to stay together. )

I myself had trouble living with my grandparents but some people might disagree.(Is that what you meant? I read the Japanese でもとてもむずかし！)

(Honestly, if I got married tosomeone and we had very different personalities or lifestyle with his parents, it might be so difficult...:()