My Beach Economy Theory - views expressed in private until now

I have been traveling the last few weeks and hence no recent posts : Well, in reality, that is an excuse.

During the trip, one of the bits that was discussed was my series of "one line adages" - I was then asked as to why I've not posted these onto my own blog - so, here goes .... the first one is an opinion that I've held for over 15 years....

The theory is what I call the "Beach Economy". In this, I theorize that NO economy (other than hospitality industry based) can flourish near good sandy beach towns.

I could state a few examples. In India, I would list : Goa, Trivandrum the good beaches of Orissa etc. The reason is something that I've learnt first hand in Goa.

In Goa, I learnt that an individuals' life ambition / goal is to own a beach front shack that is a combination of beach bar / restaurant. I always felt that while this was an interesting goal - it did not seem to be very ambitious ?

Over the years, whenever I've visited a famous beach, I tend to notice that the complete economy has high migrant population, very few industries and almost the complete economy is based on hotels / tourism and in general hospitality. No major educational institutions, no industries (even high tech) etc.

Would like to know if this is just a statistical occurance or something that is much deeper ? Especially from people who can list proof :-)