How would I make a tutorial for new players (DataStore) based off of my script?

I'm making a datastore where players' shop items get saved. I want to make it so that if a player has no items saved, a tutorial GUI pops up and gives them a tutorial. Here's my code:

local ds = game:GetService("DataStoreService"):GetDataStore("ToolSave")
game.Players.PlayerAdded:connect(function(plr)
    local key = "id-"..plr.userId
    pcall(function()
        local animation = ds:GetAsync(key)
        if animation then
            for i,v in pairs(animation) do
                local took = game.ServerStorage.Tools:FindFirstChild(v)
                if animation then
                    animation:Clone().Parent = plr:WaitForChild("Backpack")
                    animation:Clone().Parent = plr:WaitForChild("StarterGear")
                end
            end
        end
    end)
end)
game.Players.PlayerRemoving:connect(function(plr)
    local key = "id-"..plr.userId
    pcall(function()
        local toolsToSave = {}
        for i,v in pairs(plr.Backpack:GetChildren()) do
            if v then
                table.insert(toolsToSave,v.Name)
            end
        end
        ds:SetAsync(key, toolsToSave)
    end)
end)

I'm thinking that I should put an if statement and if there are no items in the backpack/startergear, the tutorial should automatically begin. Is there a better, more efficient way to start a tutorial? Thank you.