Investment target date plans are optional and still include the challenges of people executing roll overs, taking loans, cashing out with penalties, and actually choosing the right investment target date plan. Pensions are not optional, you can’t cash them out, you can’t take a loan, and they don’t require any logistics to maintain after you’ve moved on. The biggest flaw of 401ks is their optionality which allows present self to buy a new car making retired self homeless.
You (and I) aren’t the issue here - it’s the majority of people who are unsophisticated. They are autopiloting through life, assuming social security is a retirement plan or that they’ll save later when they’re closer to retirement. This is an awful lot of people. The truth is as a society we will be carrying them in their old age because we didn’t pay up front, instead we set up an optional plan assuming they would pay up front. Instead we will collectively be figuring out a way to deal with the massive underprepared aged population using present dollars rather than compounded dollars.
I think you're conflating "mandatory participation" with "defined benefits". You seem to want a system that prevents future-damaging choices by participants.
I think the other argument going on above is that "defined benefits" isn't actually possible without some escape mechanism (like tax collection) to provide the benefits when it turns out the fund didn't perform as well as hoped. When a private pension fund gets in trouble, its participants lose their safety. The others want a system that prevents future-damaging choices by fund operators, and see defined contributions as the only viable way to do this. You own a chunk of the fund and can transfer it to different stewards.
If they didn’t, PBGC would have easily failed. The whole thing is an excercise in who has sufficient political power to get bailed out, and if I am playing that game, why not just directly put my hand in the SP500 and ensure I am bailed out directly rather than maybe via proxy.
You (and I) aren’t the issue here - it’s the majority of people who are unsophisticated. They are autopiloting through life, assuming social security is a retirement plan or that they’ll save later when they’re closer to retirement. This is an awful lot of people. The truth is as a society we will be carrying them in their old age because we didn’t pay up front, instead we set up an optional plan assuming they would pay up front. Instead we will collectively be figuring out a way to deal with the massive underprepared aged population using present dollars rather than compounded dollars.