LocalScript can't find Workspace.CurrentCamera?

So I'm making an obby, and I want the camera to face the next stage when you respawn. So I tried to add this in a local script in StarterCharacterScripts:

local Camera = game.Workspace.CurrentCamera

if game.Players.LocalPlayer.leaderstats.Stage.Value > 7 and game.Players.LocalPlayer.leaderstats.Stage.Value < 19 then
	Camera.CFrame = script.Parent.HumanoidRootPart.CFrame * CFrame.Angles(math.rad(90),0,0)
	print("success")
end

(The angle isn't the actual angle. I just tried a few random ones.) That did nothing, so I tried changing it to

local Camera = game.Workspace:WaitForChild("CurrentCamera")

if game.Players.LocalPlayer.leaderstats.Stage.Value > 7 and game.Players.LocalPlayer.leaderstats.Stage.Value < 19 then
	Camera.CFrame = script.Parent.HumanoidRootPart.CFrame * CFrame.Angles(math.rad(90),0,0)
	print("success")
end

But then it said "Infinite yield possible on 'Workspace:WaitForChild("CurrentCamera")'". Why can it not find CurrentCamera?

CurrentCamera is a reference to player's camera, so you cant use WaitForChild or FindFirstChild. Use workspace.Camera for that.

So I fixed it by adding wait() to the start. Can anyone explain why this fixed the problem?