Help with SelectionBox script?

This script is supposed to create a selection box, and place it in the user's Left Arm. The script is supposed to make the SelectionBox "Cyan" by default, but if the players teamcolor is "Bright red" then make the selection box color "Bright red". The problem is that the SelectionBox is always red for all the characters, even if they aren't on the red team.

game.Workspace.ChildAdded:connect(function(Character)
	wait()
	repeat wait() until game.Players.LocalPlayer
	local p = game.Players.LocalPlayer
			local box = Instance.new("SelectionBox")
			box.Parent = Character["Right Arm"]
			box.Adornee = Character["Right Arm"]
			box.Color = BrickColor.new("Cyan")
			wait()
	if p.TeamColor == BrickColor.new("Bright red") then
		wait(.5)
		box.Color = BrickColor.new("Bright red")
	end
end)

I don't know why the if statement would return true, but your script is very error friendly. You should use the PlayerAdded and CharacterAdded events from a server script in workspace, instead of ChildAdded from a local script. Also, since the ChildAdded event fires every time a new child enters workspace, on the case that it's not a character, line 06 and 07 will break.

game.Players.PlayerAdded:connect(function(plr) --When a player joins
	plr.CharacterAdded:connect(function(chr) --When a chr is added to the plr
		wait(0.1) --Helps prevent errors.
		local box = Instance.new("SelectionBox", chr["Right Arm"]) --Create the SB in your right arm
		box.Adornee = chr["Right Arm"] --Make it show up on the right arm
		if plr.TeamColor == BrickColor.new("Bright red") then --If the teamcolor's red
			box.Color = BrickColor.new("Bright red") --Make the box red
		else --otherwise,
			box.Color = BrickColor.new("Cyan") --Make it cyan
		end
	end)
end)