Not teleporting everyone?

I have tried this

local pos = Vector3.new(-375.863, 97.1, 834.132)
    for _, player in pairs(game:GetService("Players"):GetPlayers()) do
        if player.Character then
            player.Character:MoveTo(pos)
end
end
end

and roblox's suggested one

target = CFrame.new(0, 50, 0) --could be near a brick or in a new area
for i, player in ipairs(game.Players:GetChildren()) do
   --Make sure the character exists and its torso exists
   if player.Character and player.Character:FindFirstChild("Torso") then
       --add an offset of 5 for each character
      player.Character.Torso.CFrame = target + Vector3.new(0, i * 5, 0)
   end
end

and they both only teleport one person.. its part of a larger script...this is not the only part.

WHATS GOING ON???? Help if you can.

The script only runs once - as soon as the game starts. There's only one player right when the game starts. I suggest connecting a function to it (and connecting an event to that function); for example:

game.Players.PlayerAdded:connect(function(player)
local pos = Vector3.new(-375.863, 97.1, 834.132)
--I removed the for loop because this would just teleport the player when they joined.
       repeat wait() until player.Character
            player.Character:MoveTo(pos)
end
end)

local pos = Vector3.new(-375.863, 97.1, 834.132)
while wait() do
--game stuff
for i,v in pairs(game.Players:GetChildren()) do
v.Character:MoveTo(pos)
end
--other game stuff
end