Speaking three is common, but there is often an appreciable and even obvious erosion in the mastery of some of them (limited vocabulary, misspellings..., mobile

Speaking three is common, but there is often an appreciable and even obvious erosion in the mastery of some of them (limited vocabulary, misspellings..., mobile phones made lot of damage also in this field). We need to be aware of this point also Having a logically structured thinking or being good in math (all related with having dementia or not) does not depend on how many times you can say 'street' in different languages.