@Georgia Generally, shared pathways are not ideal—especially in high foot traffic areas such as the entrances to train stations.
If you absolutely can't have a dedicated, barrier separated bike path, then at least make the shared path wide enough to comfortably allow for a cyclist to pass a pedestrian.
The Sullivan's Creek bike path in Canberra is a great example: https://thefifthestate.com.au/urbanism/infrastructure/this-is-what-great-cycling-infrastructure-looks-like/