As "Saint Zaanstad Cathedral" does not exist, its family-friendliness cannot be assessed.
Without an existing "Saint Zaanstad Cathedral," there is no basis to determine its suitability for families. However, if the intent is to visit Zaanstad's actual attractions, such as the Zaanse Schans, it is highly family-friendly.
The Zaanse Schans offers open spaces, farm animals, interactive museums (like the Verkade Experience), and demonstrations of traditional crafts that can engage children of various ages. Many windmills are open to visitors, providing educational insights into traditional Dutch industry. stroller access is generally good, though some historic buildings may have limited accessibility due to stairs or narrow doorways. Food and restroom facilities are widely available.