Of course he has, why else would he want a smartphone [emoji14] They are wonderful to keep in touch with people you can't physically see very much, and probably his accounts are extremely protected.
I like him not having public accounts not because i wouldn't like him as a person, i follow someone i admire very much and i can tell you that the old saying that goes "never meet your idols" isn't always true, but because oddly, i am not interested in his private life at all. I don't wanna know what he eats, what places he likes, UNLESS he posted practice videos then i would stalk that account as if my life depended on it [emoji14]
I guess the Hanyu Yuzuru i like the most is Hanyu Yuzuru the skater, he seems to be a very down to earth person and all that but somehow impossible to reach, even if he had public accounts. And i can't believe this but i am perfectly fine with that and i prefer he keeps it that way even after becoming professional