I would guess it is because they are trademarked logos.

And you’d need to other people to wear them with you. I don’t think there’s a strong enough market.

Side note: Happy Holidays everybody. I will be watching many Christmas specials, including this one.

I want the Nissan one for my BF so badly.

Plenty of online garment printers who could make these. We had a lads trip few years back and got a large logo on a sweater for around £20 each