In talking with my daughter who was studying Japanese, I learned that the English language has four alphabets. I was telling her how confusing I found the three alphabets in Japanese when she hit me with that. Of course, I demanded an explanation. She pointed out that there was lower case printed, upper case printed, lower case script, upper case script. There are unique letters in each. Wow! She's right. I have heard, btw, that script is not being emphasized so much any more because of computers. Everyone needs to know the printed alphabets, but not so much the script.