Why don't doctors do vaginal breech deliveries any more?

3 times higher risk: ...Of death or injury to the baby with vaginal birth vs c-section: http://www.Thelancet.Com/journals/lancet/article/piis0140-6736%2800%2902840-3/fulltext?_eventid=login.

Risky, no training..: There is no question that breech vaginal deliveries of singleton or second twins are riskier that cesarean deliveries for the fetus. There is serious debate on whether a cesarean section before labor is riskier than vaginal delivery for the mother. That's why us obstetricians have stopped doing/training for vaginal deliveries of singletons and shy away from even second twin breech extractions.