O teletransporte, ou seja, aparição , não é inofensivo e gratuito. Pode ser bastante complexo. No entanto, os livros revelam isso com muito mais detalhes do que os filmes.
Como comentado em O Cálice de Fogo :
Harry knew Apparating meant disappearing from one place and reappearing almost instantly in an another, but he had never known any Hogwarts student to do it, and understood that it was very difficult."
Isso foi logo seguido por essa troca:
“You have to pass a test to Apparate?” Harry asked.
“Oh yes,” said Mr. Weasley, tucking the tickets safely into the back pocket of his jeans. “The Department of Magical Transportation had to fine a couple of people the other day for Apparating without a license. It's not easy, Apparition, and when it's not done property it can lead to nasty complications. This pair I'm talking about went and splinched themselves.”
Everyone around the table except Harry winced.
“Er—splinched?” said Harry.
“They left half of themselves behind,” said Mr. Weasley, now spooning large amounts of treacle onto his porridge. “So, of course, they were stuck. Couldn't move either way. Had to wait for the Accidental Magic Reversal Squad to sort them out. Meant a fair old bit of paperwork, I can tell you, what with the Muggles who spotted the body parts they'd left behind....”
Harry had a sudden vision of a pair of legs and an eyeball lying abandoned on the pavement of Privet Drive.
“Were they okay?” he asked, startled.
“Oh yes,” said Mr. Weasley matter-of-factly. “But they got a heavy fine, and I don't think they'll be trying it again in a hurry. You don't mess around with Apparition. There are plenty of adult wizards who don't bother with it. Prefer brooms—slower, but safer.”
Como as seções destacadas mostram, alguns magos simplesmente preferem um método de viagem mais lento e seguro, ou seja, vassouras ou caminhadas.
Finalmente, como o site Pottermore comenta:
No shortage of Floo powder has ever been reported, nor does anybody know anyone who makes it. Its price has remained constant for one hundred years: two Sickles a scoop. Every wizard household carries a stock of Floo powder, usually conveniently located in a box or vase on the mantelpiece.
Portanto, há muitos outros métodos de transporte mais seguros do que apenas o teletransporte.
A meu ver, o motivo mais provável pelo qual o filme mostra tanta aparição permite transições rápidas de um lugar para outro e é muito "mágico", envolvendo desaparecer em um lugar e aparecer em outro lugar - muito mais legal do que mostrar alguém em um lugar. vassoura cobrindo a mesma distância.