My daughter's first language is English. My intention was for her to learn English first, teach her to read and write in English, then once she's fluent in both written and spoken English, I'll teach her how to speak Tagalog. I have my reasons. The first one being I did not want her to pick up any Tagalog curse words (which is quite commonly heard wherever we go in the country). Secondly, most of the lessons and readings we have are in English (Math, Science, History, Literature). I figured it will be a lot easier that she learns English first, then Tagalog second.