Phil only wears his balaclava, black tacticool vest etc at home because the whole antifa look is a cosplay to him. It's a character he plays, same as when he used to derp around his mum's house in Philly dressed as Sasuke from Naruto and answering posts on Deviant Art as if he was that character. It's also why the only time you see Phil outside in his cosplay is a nice, safe gathering where he can stand on the fringes, away from trouble but near the media, and pose as the character he wants to larp as. Sure he'll give you an interview, he's been a houseless discriminated against gay trans nonbinary lesbian disabled latinx neurodivergant victim bravely fighting for his life for years now. Just don't ask him any other questions because he doesn't have a clue - he's just there to look good and to have people notice and applaud him for looking the part. The minute there's any trouble or people who aren't media paying attention to him, he waddles away as fast as he can.Except Phil rarely leaves the Antardfa Barracks. He gets delivery pizza instead of going to the store, and for the few things he does need from the store I'm sure he just asks whoever he's bumming a room from to pick it up for him. I'm sure he takes that stupid shit off on the rate occasions that he does go out so he doesn't get hassled by the cops, but keeps it on all the time when he's home. Like you said, it helps him reinforce the delusion that he's a badass, allows him to say he was at protests that he was never really at, and it hides his fat, ugly face (that's the most important reason).