Hi Wendy and Welcome to OpenStreetMap.

I note that you have added a lot of foot=no access restrictions with the changeset comment "cars only".

Access restrictions in OpenStreetMap reflect verifiable legal restrictions, which in the UK for foot=no requires a traffic order and a "pedestrians prohibited" sign (TSRGD diagram 625.1 - https://commons.wikimedia.org/wiki/File:UK_traffic_sign_625.1.svg ). There is no such thing as a "cars only restriction".

Pedestrians in the UK use highways by absolute right unless exp[licitly prohibited.

I will revert all of your incorrect changes in order to prevent your misunderstanding of the law from corrupting pedestrian routing services.