viewmodel check for clothes won't update the viewmodel, any help?

I made a little script that checks every frame if the player's character has any body colors, or a shirt on their character. It doesn't seem do actually be working though, if anybody can help it would be very appreciated.

function checkViewmodel(plr,char,playerviewmodel)
    if char then 
        if not playerviewmodel:FindFirstChild("Shirt") or not playerviewmodel:FindFirstChild("Body Colors") then
            for i,v in pairs(char:GetChildren()) do
                if v:IsA("Shirt") or v:IsA("BodyColors") then
                    local item = v:Clone()
                    item.Parent = playerviewmodel
                end
            end
        end
    end
end


game:GetService("RunService").RenderStepped:Connect(function()
    checkViewmodel(player,character,PlayerView)
end)