To expect children to mean both girls and boys

[Lepreporn]

I needed to get my four year old dd
hair trimmed. I passed by a barbers shop in a shopping centre this morning. I looked in and it was empty. 3 staff standing around.
I know it was a barbers but I thought they might do a quick trim. There was a big sign on the window saying men's cuts and children's cuts.
When I went in and asked the lady would they trim dds hair. She laughed at me and said no of course not only boys !
I pointed out the big sign on the window and said girls are children too. It should just say boys if that is the case. She said our price list says boys cuts. This was a tiny sign in the corner of the window.
I left at this stage muttering that girls are children too.
AIBU ?

My poor DD has her hair cut by... me. Hairdressing scissors from Boots, child sitting on little step in front of Peppa Pig.

I do not understand this at all! You had money right? They are in the business of turning a profit I presume? Why turn away a paying customer?

Ask around for a mobile hairdresser.
You can sit child in front of tv to keep them still then they can play while you get your hair cut.