Understanding why trailing stops are implemented this way. Please explain?

So in accordance with https://www.binance.com/en/support/faq/how-to-use-spot-trailing-stop-order-339635f6260d43c5aefa4c3c921728ec your promote trailing stop order won't kick off till the worth has exceeded the share and then send your promote restrict order to the books.

I don't understand why you must set a limit worth. In the event you miscalculated or no matter and set the worth restrict ABOVE where the share would trigger then the sell order won't ever promote regardless that the share was hit until the worth goes back up and hits that limit. Why would you ever need to willingly set it above the share threshold that you simply set???

So realistically you'll ALWAYS have to set the sell worth LOWER than the worth can be on the proportion set off level. If that's the case why not eliminate this area and have it execute the order instantly as soon as the share is triggered at that worth or if the order is just too giant then unfold it over the subsequent lot of purchase orders? Wouldn't this give the seller the most effective worth earlier than an enormous drop?

I don't perceive what is the level of needing to specify a worth restrict?

For those who do use this is able to you not set the limit to as near zero as attainable because your promote order will go first as a result of it is the lowest and the actual worth that you'll get will be the market worth which will probably be much larger.