I said that last night, emmie.
Carnival brings about a million people into an area of a couple of square miles. That's very roughly the population of Birmingham. So you might want to compare it to the crime rate of Birmingham.
Violence and sexual offences alone came to 78,000 last year - that's about 200 a day.
https://crimerate.co.uk/west-midlands/birmingham
Carnival figures over three days are given as 46 arrests for assault and eight for sexual assault.
You're far, far safer in Notting Hill, and you get the parades and music.