This is intrinsic to Japanese — in terms of both grammar and culture. We don’t use “I” much, because it’s implied in the verb. We use it when we want t stress it, like “well I don’t mind whether we eat x or y …” Little kids tend to refer to themselves using their own names. “Mariko wants to eat X”

And we don’t use “you” as much either. We either leave it out when it’s a casual relationship or question form but in most cases we use the other person’s name (or what we call them, like “Teacher” or “Doctor”.

“He/She” is used a little more, but it’s awkward to use it a lot, and gives a sense of emotional distance.

I guess they actively chose to maintain that in the English translation…