TBH ... I read the OP as a joke.
Also TBH, and I do *not* think that you intended it this way, I first read your reply as suggesting that we have child care to protect children ... from their parents. Which, as you might understand, I thought was a much worse take.
Perhaps, and I'm just suggesting an idea, there are many and varied reasons for having publicly funded childcare? We can consider the value from any one of: personal, developmental, economic and social-justice perspectives, and they can all be valid.