He seems to like it.
"My Little Pony: Friendship is Magic" & Original Characters © Hasbro
Sibling Rivalry. Changes so many things.
I'd had a theory that there aren't any male alicorns is because...one hasn't emerged yet. But if one did, Shining Armor would be the most likely candidate.
Sombra might have, if he didn't go down such a dark path. It seems that each alicorn faces their own internal darkness, either before or after their ascension. Luna had her Nightmare Moon period, Twilight went batshit insane.
If someone asks why...?
I answer: The REAL question is... why not?
As for why Celestia and Luna have lived so long, I don't know. Maybe it's because they are connected to the sun and the moon?
That said, I think Shining Armor has as much of a chance as the other mane 6, probably more so because he has a loving wife to guide him. But each alicorn finds it in their own way...and often when they aren't even looking for it.
For all we know, Shining Armor may become the first male alicorn since the progenitors of Celestia and Luna.
And also, for all we know, Hasbro might try this.
1: He is the only unicorn in the Royal Family, other than Prince Blueblood, so he may get jealous of Twilight at one point to the fact that he starts attacking her.
2: He only cared for Cadence in A Canterlot Wedding, but now he acts like a roommate, in fact, he rarely gets close to her.
3: He gets all of the attention in A Canterlot Wedding part 1 when he was scolding Twilight, and he argued with Cadence, which shows the sin of Lust, and/or Greed.
I just thing Shining Armor is a greedy, power-hungry, nihilistic, sadistic bastard. I'm sorry but that is my opinion, he should be better off a villain.
2. He really cared about Cadance when King Sombra tried to take over the Chrystal Empire.
3. He thought Twilight was being mean to Cadance and he never knew that it was really Queen Chrysalis. He argued with Cadance because the changeling Cadance rudely asked him to wear something else, and then she hypnotized him.
Look, I understand most people's opinions, put I just don't know why you think he is a cold blooded bastard. Also, why would they make him a villain? I mean, he's the main character's brother, and the only thing bad he did was scold Twilight, and at that time, he was under the spell of Queen Chrysalis.
2: Ok, but after that, my point takes place.
3: At first glance I thought that would make his spell to protect Canterlot Castle, not hypnotize him.
I just do not like this character, you may like him, but I despise him, he should have just been a villain for season 4 but he gets redeemed.
Maybe Shining Armor needs to have his.
He is going to have to train up a guard for the Crystal Empire, though...
Not to mention that he got married to a princess only because his sister saved his marriage, and he become prince or emperor of Crystal Empire only because his sister saved it for him, so yea, Shinning Armor does not deserve wings and extra powers.