Why won’t Singaporeans work abroad?

I came across this debate conducted by eFinancialcareers and found one of the comments very interesting, it goes like this...

The reason we don't leave is that Singapore is a great place to live and work - summer all year, world's best transport sytsem, no crime, no hassles....when you step out of work you don't have to battle the guns, cold and grumpy people like in New york or London. plus If Sing wasn't so great then why would so many expats want to live here????