Yes, I agree with the above. Digital piano is fine for beginner's use. But, after you get to an intermediate level in a couple of years, you will then want a real acoustic piano.
If your goal is to play pop only, you may be well off studying by yourself with a book. However if you wanted to play classical or jazz piano, I would strongly suggest getting a teacher, even at the beginning level. Therefore you won't develop possible bad habits in hand positioning, fingering, and motion that it might be later hard to break. Good Luck!