Thankyou everybody for your replies!

They have all been very helpful..
It is true that this is something new for him and time and support can only help him to become more comfortable with it I will definitely look in to online shopping with him some more as it will be a good solution for when he wants a quick and easy fix of clothes/shoes etc.. and as part of the fun is in the actual shopping process I will continue to go with him but perhaps yes if he is showing discomfort I will suggest another activity for a while until he feels better again.. and if i need to i will mention that he is being grumpy and that I dont like it..

It also does sound quite fun to give him some money and see what he comes back with! Perhaps when he is a bit more comfortable I will try that :P

You have all been very helpful and sweet,

Thanks a lot!

Anna x