Pipino was my son Pep's way of saying "Pilipino" back when he was much younger. He couldn't quite keep up with the many syllables of most Tagalog words so he took a shortcut and called himself a Pipino. As his mom, I had to follow suit. That is how I became a Pipino myself.
Learning Tagalog will never get in the way of learning English. My sons will be all the richer as writers, thinkers, speakers and Filipinos if they learn and love both languages equally. Science also tells us that learning more languages is also better for our brains!
I know it doesn't always feel like this is true (especially when we talk about schoolwork, vegetables and chores) but our children naturally gravitate to us when we speak. Especially when we tell stories out loud. They want to hear us speak to them, and it makes them want to talk to us too.
When we cultivate our children's imagination, they are filled with ideas that they want to share. Sharing and cultivating a love for the beautiful Tagalog language will help them express these ideas and enrich the language as they use it.