Probably weight.
A reasonable number of wood posts/stilts could support a house.
Supporting the weight of a big hotel is a different story.
Here in California, continuous foundations are usually required for earthquake safer. You cannot have any big gaps, such as between “stilts”. As a result, out beach houses are built on higher ground, often using concrete retaining walls or sloped earth:
https://www.redwagonteam.com/wp-content/uploads/2020/04/Beach-front-homes-for-sale-Jay-Valento.jpg
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