isn't it better to contribute economically rather than hanging around gossiping or ogling at sexy gals at void decks? Gossiping and flirting with foreign ladies set a very bad example for our young. Marriages break up and the societal costs are high.
If senior citizens work, our nation benefits and their families benefit as well. They will enjoy better health as well through interaction with others in the course of their work.
Nowadays, the cost of living is very high. Shouldn't the elderly take up some part time jobs to help lighten their adult children's financial burden? Unless the old folks are millionaires lah...
All in, working is definitely beneficial for the elderly. Of course, they should not take up physically strenuous jobs as laksaboy has pointed out correctly. In any case, when the elderly work in cleaning jobs, usually their employers will be lenient to them and allow them to do their chores at a slower pace.