If someone asks me, then yeah, I'd say it.

[But he gets it, maybe a little, he thinks. Edgeworth was always questioning magic, telling him it wasn't real, it was some sort of science. But Sirius had been born into magic, with magic actually in him. It had never occurred to him, to think of it as false.]

It's like someone asking if air is real. You don't say it every day, 'cos of course it is. So?