How to create a instance of message if there are less then 2 players in a server?

I want to make to make a script which Creates a Message if there are less then 2 players, But I don't know how. also if you're using any loops such as: for i,_v in pairs or any loops similer, can you explain to me why your using them and how they work, thanks

Explanation:

This does require one loop, that is while true do. I will now explain it

While true do is a loop which does some code while the middle word is active. Since it is true, the loop goes on until the game is false, which is when the server ends.

I hope that helped you, here is the answer

My Answer:

Here is the way I would do it

Script:

local debounce = false
while true do
	if game.Players.NumPlayers <= 2 then
		if debounce == false then
			debounce = true
			local m = Instance.new("Message", game.Workspace)
			m.Text = "Whatever you like"
		end
	end
	if game.Players.NumPlayers >= 3 then
		if debounce == true then
			debounce = false
			if game.Workspace:FindFirstChild("Message") then
				game.Workspace.Message:Destroy()
			end
		end
	end
end

I hope this answer helped you