I have 2 properties, 1 for staying with my wifey and kid, the other is a hdb which we rented out, after we purchased the condo. The condo really sucked up a huge chunk of my current and potential savings. Earnings from my biz are used predominantly to organically expand the biz and also to pay myself for investments in some blue chip stocks. Not sure if thats considered robust financial safety net in your definition ?
But I enjoy doing my biz so I foresee myself continue to work on it till after 65yo and dun intend to retire at all. But I want to continue receiving a stable payout month after month after I turned 65, at least $3K/mth, on top of dividens from the stocks and rental income. Thats why I am looking at CPF ERS to fulfill this role since the interest is quite good at 4% annually, better than FD.