@jodieswhittacker headcanons:
Taron knew of Jodie, before he actually met her. Due to his dad loving Dr Who and watching every episode almost religiously, he had cheered for her being appointed the first female Doctor, and, when he met her, he had fangirled about this a lot internally. He might have also asked for a selfie for his dad, but kept it for himself, also.
Due to Gracie being somewhere in between his own twins and his youngest sister in age, he’s developed a big brother/uncle relationship with her, and is always happy to indulge her, when they all meet up.
There’s something utterly charming about Jodie not hiding her broad accent, and he always makes fun of those Americans who get a huge question mark over their heads, when they don’t quite understand what she’s on about.
Taron has never seen Jodie back down from a challenge, ever. And that, without a doubt, makes him try to be more daring, too, because surely, she cannot be that wrong, can she?