If you’ve lived in Seattle, Mount Vernon is fine. There’s the odd homeless person, etc.

You can walk to restaurants/bars on Charles, the harbor, Fells Point, Federal Hill, Druid Hill park (which is beautiful) just fine.

You can walk to Eddie’s, an appropriately priced grocery store

If you’re out at night, just be sensible, people do get robbed.

And yeah, I agree with the other posters… people here are super friendly.