Recommended is a polite word. They really should require a bus license for people who buy these things. And maybe a booster seat if you are under 6 feet and weigh less than 100lbs? I swear the next 5ft 2 80lb woman who veers her Excursion at me is gonna get an earful. Its ridiculous and unsafe. Maybe I'll get lucky and they'll stop making them since they have such bad gas mileage.