To reduce risk exposure specifically if you are day trading or opening long positions.

I have read the explanations by the Binance and watched some videos about the stop loss and limit orders. But still can't think of a practical use for stop loss orders.
If I want to buy or sell a coin at a certain price I use limit orders. Why would I need to condition it like in stop loss?
I am new to Binance and crypto so I would appreciate it if someone could explain :).