More like a bank account falling under the deposit insurance. Don't gamble with money you can't do without, is what I was trying to convey.
If you mean for a pension (assuming there is no state-supplied minimum pension that you could live from if necessary), get a pension plan where it stipulates how much you'll get per month rather than something where you depend directly on the market's daily whims.
Very wide-spread ETFs are an exception due to their track record: if you are rich enough that you could survive a 15-year market recession then those are an option as well.
> Don't gamble with money you can't do without, is what I was trying to convey.
That's fair, but my point was that retirements saving are money one "cannot miss" (as in the original comment) or "can't do without".
And yet I think it has to be invested, for example in the options you listed, because keeping it in a bank account will only expose it to inflation, and hurt your retirement.