Welcome, the area you are in is pretty great, some sketchy people but enough good people to balance it. Just be wary of the Alpha House and the area around it, some super sketchy people hang out in that area.
As a cyclist I can tell you that drivers from here can't figure out bike lanes, drives me nuts. They should be treated like a traffic lane like most people have said, when driving check your mirrors and do a quick shoulder turn before crossing over them. I can hit 50km/h on my bike in the lanes, so cyclists come up quick, hence the shoulder check. As a pedestrian, treat them like a traffic lane as well, I've almost hit so many people that just step into the lane like it's part of the sidewalk. Just being aware of what's around you is most important.