Jonathan tells me you can! This is excellent!
Lots of cafes and some restaurants offer soya milk to enable vegans to have coffee/tea and a few stock desserts that have are vegan friendly. However, this is not the case everywhere, especially in for example, Gujarati, South Indian, Bengali and Punjabi restaurants. After thinking this I am so pleased to find out the following from Jonathan: –
I should mention that there are a few exceptions to the rule, such as Shahee Bhelpoori in Norbury who offer soya milk with their teas and coffees as well as vegan lassis, vegan ice cream and vegan versions of many dairy based main courses.
This also applies to The Riverside Vegetaria in Kingston.