Accent in foreign language is a very complex thing. Germanic languages shared same tone. So I would agree that an english speaker could _manage_ the german accent and vice-versa.
The #1 problem with accent is that in order to master a foreign accent you have to be 1. Young, 2. Gifted.
It's impossible for someone who's over 18 years old (arbitrary) to master a different accent (French from english speaking, Cantonese from French/English, etc.)
That's why 6-8 years old who learn a foreign language are so good at it, they have the brain set for learning accents.
You only kid yourself if you believe that you don't have an accent in xyz language and you started learning it past your 20s.
The #1 problem with accent is that in order to master a foreign accent you have to be 1. Young, 2. Gifted.
It's impossible for someone who's over 18 years old (arbitrary) to master a different accent (French from english speaking, Cantonese from French/English, etc.)
That's why 6-8 years old who learn a foreign language are so good at it, they have the brain set for learning accents.
You only kid yourself if you believe that you don't have an accent in xyz language and you started learning it past your 20s.