I'm a little confused about the value of a target date fund (TDF). They seem to perform very poorly when compared to a decent growth mutual fund, Berkshire, or even an S&P 500 ETF. If the market goes south and you are forced to sell some you sell at the ratio of the TDF, say 60% stocks and 40% bonds, therefore, you are still selling mostly stocks. Sequence of return losses are reduced by 40% but are still there.
If you hold 60% stocks/stock funds (as a mutual fund, S&P ETF, Berkshire, etc) and 40% bonds/bond funds you can sell only bonds in a down stock market and avoid sequence of return losses.
It seems like TDFs are a salesman's trick to earn more fees on a marginal product that can't avoid the risk it was designed to minimize. I am open to being convinced otherwise.