What factors influence first language (L1) attrition in bilingual people?

Seminar paper from the year 2014 in the subject English Language and Literature Studies - Other, grade: 2,3, University of Cologne (Englisches Seminar I), language: English, abstract: Every child will acquire at least one language. A lot of people learn more languages during their lifetime e.g. during emigration in a country with another language. During situations like these the first language (f...