RigType not working as expected?

I wrote some code so that when a player sits down, it will detect if they have an R6 or R15 avatar and adjust the animation that it puts on them depending on their rig type

R6Animation = script.Parent.R6Animation
R15Animation = script.Parent.R15Animation
Seat = script.Parent

Seat.ChildAdded:Connect(function(Child)
	if Child.ClassName ~= "Weld" then end
	if Child.Part1:FindFirstChild("HumanoidRootPart") ~= true then end
	local PlayerModel = Child.Part1.Parent
	local Animator = PlayerModel.Humanoid.Animator
	if PlayerModel.Humanoid.RigType == 0 then
		AnimationLoader = Animator:LoadAnimation(R6Animation)
		AnimationLoader:Play()
	else
		AnimationLoader = Animator:LoadAnimation(R15Animation)
		AnimationLoader:Play()
	end
end)
Seat.ChildRemoved:Connect(function(Child)
	if Child.ClassName ~= "Weld" then end
	if Child.Part1:FindFirstChild("HumanoidRootPart") ~= true then end
	local PlayerModel = Child.Part1.Parent
	local Animator = PlayerModel.Humanoid.Animator
	AnimationLoader:Stop()
end)

However, for some reason, when it gets to the "== 0" bit it wont play the r6 animation until i change the indicator to ~= 1, and then it wont play the r15 animation until i change it back. Any ideas on why?

Solved, leaving up for others who make the same mistake.

Oops! It seems that HumanoidRigType is actually an Enum Value! Heres the fixed code:

R6Animation = script.Parent.R6Animation
R15Animation = script.Parent.R15Animation
Seat = script.Parent

Seat.ChildAdded:Connect(function(Child)
	if Child.ClassName ~= "Weld" then end
	if Child.Part1:FindFirstChild("HumanoidRootPart") ~= true then end
	local PlayerModel = Child.Part1.Parent
	local Animator = PlayerModel.Humanoid.Animator
	if PlayerModel.Humanoid.RigType == Enum.HumanoidRigType.R6 then
		AnimationLoader = Animator:LoadAnimation(R6Animation)
		AnimationLoader:Play()
	elseif PlayerModel.Humanoid.RigType == Enum.HumanoidRigType.R15 then
		AnimationLoader = Animator:LoadAnimation(R15Animation)
		AnimationLoader:Play()
	end
end)
Seat.ChildRemoved:Connect(function(Child)
	if Child.ClassName ~= "Weld" then end
	if Child.Part1:FindFirstChild("HumanoidRootPart") ~= true then end
	local PlayerModel = Child.Part1.Parent
	local Animator = PlayerModel.Humanoid.Animator
	AnimationLoader:Stop()
end)