Watson was inherently supposed to be a man’s role and they turned it on its head. What does that mean?
It doesn’t mean you have to walk around with a pantsuit. It means you can be feminine and you can be who you are, but you can be strong and you can be intelligent, so it’s about matching that.
And you also want to make sure that it’s mano-a-mano with the character of Sherlock, otherwise it becomes quite mundane. He’s an intelligent character — he’s very colorful, and he’s going to need somebody who he’s going to respect highly to want to be his partner.
So, you can’t really have one without the other. You need someone who is going to be intelligent and bring something that he can’t bring to the stage.
So, her pointing out things or her helping him solve cases, as he says in the series, ‘You make me better.’ That’s what you hope for in any partner or any relationship."