Posting here for traffic.
Totally new to the whole pet thing! We've recently adopted a cat. She's 2 years old. We've followed all the instructions and guidance from the shelter.
She's been with us for 5 weeks now. She came from a family with children, several other cats and multiple dogs too.
When we first brought her home, she immediately hid. She's now much better but still hides for considerable amount of the day. She can be stroked if you go to her but she will pretty much always walk/run off.
She will scram and try to bite very often. She won't let us pick her up (at all!).
Toileting, eating and drinking is all fine.
I was under the impression that after 5 weeks she'd be a bit more, erm, approachable 
Is this typical behaviour for an adoptive cat? I was hoping she'd be snuggling on my lap by now and sleeping on my bed!