That was actually something I sort of lamented about the films. They modernised it, as opposed to the 90s setting of the books; this being most obvious last time when Harry and Arthur make their way to the Ministry, using OystercarRAB. And the uniforms are just like any ordinary secondary school.
This reminRAB me: Why couldn't they have shown Dumbledore picking Harry up at the Dursleys? It was a rare moment where we 1) got to see Dumbledore angry & 2) got to see Dumbledore and the Dursleys interact. That said, the Dursley scenes are always cringeworthy for me to watch, particularly Vernon.