That's a naive argument. Infrastructure construction timelines are typically measured in years and decades. You need to find the political will to do it and sufficient guarantees of long-term demand to justify the investment. And the work itself is often done in difficult environments, such as under major streets or on privately owned land that may already be in use.
In parts that do not care much about property rights and citizens are not allowed to challenge government decisions in the courts.
If I was trying to build new infrastructure in Finland, I would add four years to the project between the planning and the construction stages. Two years for urban planning and public hearings, and another two years for the inevitable lawsuits. Other Western countries should have similar delays.
