Making a character refresh every 30 secs?

How would I make a character model refresh like every 30 seconds when the real player changes its avatar.. I have no idea how to do this

You could use :LoadCharacter like this

while wait(30) do
	for i, v in pairs(game.Players:GetChildren()) do
		local lastpos = v.Character.Head.Position
		v:LoadCharacter()
		workspace:WaitForChild(v.Name):WaitForChild('Head').CFrame = CFrame.new(lastpos)
		wait()
	end
end

This reloads the character and teleports them back where they were. This may not be an efficient way, but really, is resetting a character every 30 seconds really necessary? Like, rarely no one changes their avatar while playing a game.