Did I just meet skinheads at the zoo?

Genuine question because I’m a bit shocked. They were a nice family, but the parents had shirts with 1312 and ACAB, and Australia on their shirts (written in that font that neo nazis love, iykyk).

I felt like their outfits were intentional and synchronised, but is it possible they didn’t realise the big fat white supremacy dog whistles they were wearing?