I recently heard a statistic, that the average Tico (Costa Rican) driver has had a license for less than 2 years.
That, in itself, explains to me why they drive like teenagers. They haven’t personally experienced an accident yet. But they will and the experience may make them more cautious.
In his post, A Dull Roar – Moving to, Retiring in, Living in Costa Rica – gives us his take on driving here.