Doing working holiday with my sibling, should we declare this?

Hi all,

My sibling and I will be applying for the working holiday in a couple of weeks. Our appointments are at the same time but separate. Neither of us have mentioned we'll be travelling together in our itineraries or statement of purpose. I was wondering if it's worth us mentioning this at all?

I'm worried that the embassy will think it's odd we're applying at the same time but make no mention of travelling together – but I could be completely overthinking it. Should we put something about travelling together in our visa applications or just leave it as is?

Any advice is appreciated. Thank you.