That's an insightful question that touches on a key topic in modern urban design. The direct answer is: some are, but many are not. The primary goal of most park benches is to provide comfortable, durable seating for the public to rest and socialize.
However, certain designs do incorporate features to deter specific activities. You might see benches with armrests dividing the seating space. While these aid accessibility for the elderly, they also make lying down uncomfortable. Similarly, benches made from materials like coated metal or with ledges at specific angles can unintentionally or intentionally hinder skateboard grinds.
It's crucial to distinguish between intentional "hostile architecture" and practical durability needs. Cities often specify robust materials like hardened steel or concrete to prevent vandalism and withstand weather, which can incidentally deter skateboarding. The intent isn't always to displace vulnerable individuals but to ensure longevity and safety for all users.
Ultimately, thoughtful design seeks balance. The ideal park bench welcomes everyone—families, commuters, seniors—to pause and enjoy the community space, while being built to last in a shared public environment. The conversation around their design reflects broader questions about inclusivity, public space management, and social responsibility in our cities.