De tidigare svaren är bra. Men jag skulle vilja lägga till en sak.
Hagrid lät verkligen människor i Hogwarts, åtminstone på ett symboliskt sätt. När Harrys förstaårsstudent anlände till Hogwarts för första gången ledde Hagrid dem från tåget till slottet, genom sjön och en tunnel. Han verkar också ha kontrollerat båtflottan som han gjorde det här. Denna scen beskrivs på över två sidor i Harry Potter och Philosopher's Stone kapitel 6 och 7.
The train slowed down and finally stopped. People pushed their way towards the door and out on to a tiny dark platform. Harry shivered in the cold night air. Then a lamp came bobbing over the heads of the students and Harry heard a familiar voice: ‘Firs'-years! Firs'-years over here! All right there, Harry?’
[…]
‘C'mon, follow me – any more firs'-years? Mind yer step, now! Firs'-years follow me!’
[…]
‘Yeh'll get yer firs' sight o' Hogwarts in a sec,’ Hagrid called over his shoulder, ‘jus' round this bend here.’
There was a loud ‘Oooooh!’
The narrow path had opened suddenly on to the edge of a great black lake. Perched atop a high mountain on the other side, its windows sparkling in the starry sky, was a vast castle with many turrets and towers.
‘No more'n four to a boat!’ Hagrid called, pointing to a fleet of little boats sitting in the water by the shore. Harry and Ron were followed into their boat by Neville and Hermione.
‘Everyone in?’ shouted Hagrid, who had a boat to himself. ‘Right then – FORWARD!’
And the fleet of little boats moved off all at once, gliding across the lake, which was as smooth as glass. Everyone was silent, staring up at the great castle overhead. It towered over them as they sailed nearer and nearer to the cliff on which it stood.
[…] They were carried along a dark tunnel, which seemed to be taking them right underneath the castle, until they reached a kind of underground harbour, where they clambered out on to rocks and pebbles.
[…]
They walked up a flight of stone steps and crowded around the huge, oak front door.
‘Everyone here? You there, still got yer toad?’
Hagrid raised a gigantic first and knocked three times on the castle door.
The door swung open at once. A tall, black-haired witch in emerald-green robes stood there. […]
‘The firs'-years, Professor McGonagall,’ said Hagrid.