Why do mothers go for the full name when they are trying to stop you in your tracks.... I was always known by the short form of my name but then every so often it would be the full 4 syllables + middle name + surname ="What do you think you're doing?"
I think Elf princes are all budding delinquents - they either have to find their own realm or kick around half hoping Daddy will be murdered or slain in battle so they can be top dog.... I reckon that Thranduil asked Elrond to get Leggie out of the way for a while to stop him moping around the palace being bored and that the Dunedain had to take on Elladan and Elrohir in return for all that free board and lodging and fostering of their dependents.... I always think there is something a bit sinister about those boys...they should have gopt ovbert dressing alike a couple of millenia previously and it may be coincidental that chieftains of the Dunedain tend to meet unfortunate ends in their company but I think it is displacement activity....