why oop is a waste of time

—-OOP example, rock paper scissor
—-this can be made better by only selecting 2 different action so there will always be a winner and a loser,
function rockPaperScissor(amountOfPlayers)
    local round=0
    local Players={}
    local function logic(Act1,Act2)
        local v
        if Act1=='Scissor'then
            if Act2=='Rock' then
                v=Act2
            else
                v=Act1
            end
        elseif Act1=='Rock'then
            if Act2=='Scissor'then
                v=Act1
            else
                v=Act2
            end
        else
            if Act2=='Scissor' then
                v=Act2
            else
                v=Act1
            end
        end
        return v
    end
    local function analyze()
        local haveScissor=false
        local haveRock=false
        local havePaper=false
        for i,v in pairs(Players) do
            if v=='Scissor'then
                haveScissor=true
            elseif v=='Rock' then
                haveRock=true
            elseif v=='Paper' then
                havePaper=true
            end
        end
        local count=0
        if havePaper then
            count=1
        end
        if haveScissor then
            count=count+1
        end
        if haveRock then
            count=count+1
        end
        if count==2 then
            local a=haveScissor and'Scissor' or havePaper and'Paper' or'Rock'
            local b=haveScissor and'Scissor' or havePaper and'Paper' or'Rock'
            local winner=logic(a,b)
            print('\n'..winner,' won')
            local String=''
            for i,v in pairs(Players) do
                if v==winner then
                   String=String..Players[i-1]..', '
                end
            end
            String=String:sub(0,#String-2)
            print('Winners are ',String)
            return true
        else
            return false
        end
    end
    local function report()
        round=round+1
        print('\nRound: ',round,'\n')
        for i,v in pairs(Players)do
            if tonumber(v:sub(2,2)) then
                print(v..': ',Players[i+1])
            end
        end
    end
    for i=1,amountOfPlayers do
        local random=math.random(0,2)
        local move=random==0 and 'Rock' or random==1 and 'Paper' or 'Scissor'
        table.insert(Players,'P'..i)
        table.insert(Players,move)
    end
    report()
    if not analyze() then
        repeat
            local t={}
            for i=1,amountOfPlayers do
                local random=math.random(0,2)
                local move=random==0 and 'Rock' or random==1 and 'Paper' or 'Scissor'
                table.insert(t,'P'..i)
                table.insert(t,move)
            end
            Players=t
            t=nil
            report()
        until analyze()
    end
end
rockPaperScissor(30)