It turns out that Draco “met” Professor Slughorn and Arthur Weasley before he entered the School of Witchcraft and Wizardry.
The Harry Potter saga has glorified young actors all over the world, but many of them have acted in films before. Only then did they pay no attention to it.
For example, the interpreter of the role of Draco Malfoy made his film debut in 1997, playing the role of Peregrine Courant in the film “Getters” (also known as “Thieves”).