My city recently put in a bunch of bike lanes and protected most of them with concrete barriers that are held in place by rebar. Even with these additions, I can only safely access maybe 1/8th of the city (excluding neighbourhoods). There's even a shopping mall that is right beside a bike lane but most of the stores can only be accessed by navigating a massive parking lot.
They're putting in another north-south bike lane, but that one will be complete in ...30 years as per their website.
The biggest accomplishment of my city is turning an old coal train track into a bike path. Then after that was finished they put in a new interchange for the main highway lol.
*Also none of the post offices are accessible by bike.