Just be clear you are an option for help if needed, other than that be nice and don’t over worry. People with limited mobility like to run their own lives, just the same as we all do. It sounds like you’ve been a pleasant neighbor, keep it up and continue shoveling if you want. Snow is usually considered fair game for anyone willing, and people almost always appreciate its removal. If you don’t want pay, say it’s not something you accept for snow removal. Pretty normal for people who grew up in snowy cities to volunteer some shoveling time. If they ask you to stop, you should heed their request.

Extremely short sighted and stupid decision. The only people that will support it are the Google fanboys.