Why does my script keep killing the player when they spawn?

Why does my script keep killing the player when they spawn?

This is a local script in StarterCharacterScripts.

It is supposed to kill the player when they hit the ground at over 10 Velocity.Y.

local Char = script.Parent

for _,v in pairs(Char:GetChildren())do
    if v:IsA("BasePart") then
        v.Touched:Connect(function()
            if Char.UpperTorso.Velocity.Y >= 10 then
                Char:FindFirstChild("Humanoid").Health = 0
            end
        end)
    end
end