FZROX gives me 0% fees, can be bought in my retirement accounts, and is attached to a company with something like $1 trillion AUM. The latter gives me faith that it will still be around next year. I appreciate that the 0% fee options are limited, but personally I’d rather deal with 0.03% fees than entrust my money to a small shop. Especially when the reason to do so is not some trading edge, but saving a small amount…
"Invest all your savings in our startup so after 30 years you'll have 1% more money in the absolute best case scenario" doesn't feel like a winning strategy.