private
  def must_be_over_13
    if birthday && birthday > 13.years.ago
      redirect_to under_13_landing_page_path ``
    end
  end

def under_13_landing_page
  end

under_13_landing_page.html

get "games_for_kids", to: "students#under_13_landing_page", as: 'under_13_landing_page'