De fato majors se tornou mais usual nos últimos anos, mas comparado com degree é muito menor. Veja os dados do Ngram:

https://books.google.com/ngrams/graph?content=*+a+degree+in%2C+*+majors+in&year_start=1800&year_end=2000&corpus=15&smoothing=3&share=&direct_url=t2%3B%2C%2A%20a%20degree%20in%3B%2Cc0%3B%2Cs0%3B%3Bto%20a%20degree%20in%3B%2Cc0%3B%3Bof%20a%20degree%20in%3B%2Cc0%3B%3Bwith%20a%20degree%20in%3B%2Cc0%3B%3Bsuch%20a%20degree%20in%3B%2Cc0%3B%3Bfor%20a%20degree%20in%3B%2Cc0%3B%3Btook%20a%20degree%20in%3B%2Cc0%3B%3Btaken%20a%20degree%20in%3B%2Cc0%3B%3Breceived%20a%20degree%20in%3B%2Cc0%3B%3Bhalf%20a%20degree%20in%3B%2Cc0%3B%3Btake%20a%20degree%20in%3B%2Cc0%3B.t2%3B%2C%2A%20majors%20in%3B%2Cc0%3B%2Cs0%3B%3Bthe%20majors%20in%3B%2Cc0%3B%3Bwith%20majors%20in%3B%2Cc0%3B%3Bof%20majors%20in%3B%2Cc0%3B%3Bfor%20majors%20in%3B%2Cc0%3B%3Band%20majors%20in%3B%2Cc0%3B%3Bundergraduate%20majors%20in%3B%2Cc0%3B%3Bas%20majors%20in%3B%2Cc0%3B%3Bwere%20majors%20in%3B%2Cc0%3B%3Bwho%20majors%20in%3B%2Cc0%3B%3Bto%20majors%20in%3B%2Cc0#t2%3B%2C*%20a%20degree%20in%3B%2Cc0%3B%2Cs0%3B%3Bto%20a%20degree%20in%3B%2Cc1%3B%3Bof%20a%20degree%20in%3B%2Cc0%3B%3Bwith%20a%20degree%20in%3B%2Cc1%3B%3Bsuch%20a%20degree%20in%3B%2Cc0%3B%3Bfor%20a%20degree%20in%3B%2Cc0%3B%3Btook%20a%20degree%20in%3B%2Cc0%3B%3Btaken%20a%20degree%20in%3B%2Cc0%3B%3Breceived%20a%20degree%20in%3B%2Cc1%3B%3Bhalf%20a%20degree%20in%3B%2Cc0%3B%3Btake%20a%20degree%20in%3B%2Cc0%3B.t2%3B%2C*%20majors%20in%3B%2Cc0%3B%2Cs0%3B%3Bthe%20majors%20in%3B%2Cc1%3B%3Bwith%20majors%20in%3B%2Cc0%3B%3Bof%20majors%20in%3B%2Cc0%3B%3Bfor%20majors%20in%3B%2Cc0%3B%3Band%20majors%20in%3B%2Cc0%3B%3Bundergraduate%20majors%20in%3B%2Cc0%3B%3Bas%20majors%20in%3B%2Cc0%3B%3Bwere%20majors%20in%3B%2Cc0%3B%3Bwho%20majors%20in%3B%2Cc0%3B%3Bto%20majors%20in%3B%2Cc0