i have duel citizenship in America and England. Took along time for me to get approved and go through the process,nearly three years, i know it can take even longer sometimes. It isnt necessary to obtain a citizenship with another country if you do not stay in that country for months at a time. I got a duel citizenship, because i used to have a fiance in England and i would stay there months at a time. The periods i would stay were months at a time. So unless you plan on living in that country or going there often, then there isnt any reason to do it.