If so, then you are perceived as most likely to have a Standard Southern British English accent. Whatever that means,
https://www.bbc.co.uk/news/articles/cwyjdyj729ro
Not sure where mine comes from as I've travelled a lot and been up North a lot of my life.
Of the 10 accents studied, Glaswegians were perceived as most likely to stand up for someone who was being harassed, people with Scouse accents were seen as most likely to commit crimes and people with Standard Southern British English accents were viewed as most likely to report a relative to the police for a minor offence.
People do make assumptions about accents.