Not a proper teacher (yet!) but do quite a lot of outreach in schools, and keep getting this pushback from girls not wanting to do 'techy' stuff.
Heard all sorts: "My mum says...." usually followed by a crazy reason girls think they can't/shouldn't learn to code or even do robotics stuff!
Wondering if this a symptom of the area im doing these projects in? or if anyone's seen something similar. So old fashioned 
Seems patronising to make 'girly' workshops, but at my wit's end? Any ideas?