The biggest lesson is that retirement is solely a personal responsibility.

Don't let others tell you how much you need or dont need.

Sinkie has annuity called CPF life. If can live within lifetime payout means, then can retire at 65.

If not enough can always go bolehland or other cheaper country to retire. Lots of options.

80+% will also have HDB (fully paid by 55). If retire abroad, can supplement by renting out HDB and add on rental income. Even 2 room rental can generate enough monthly income (after minus bolehland rental if retire in bolehland)

No need so much money, yet plenty of choices if one can do their own proper financial planning.