Panamá has many attractions as a country, and each town has its individuality. Each and every one of them are very well accepted by expats from different regions of the planet, mostly the US, Canada and Eastern Europe.
And expats not only enjoy the relaxing, family-oriented and unique lifestyle, but also the environmental benefits like excellent weather, coast to coast ocean views everywhere, black sand beaches, mountains, hills, rivers and green wherever you go, in combination with modern technology, malls, medical care and all the benefits that globalization brings.
Casco Viejo, as part of Panamá City, is not the exception. Expats love the narrow colonial streets in the area, not only because of their well taken care old balconies with flowers, but also because of cultural events at the National Theater, excellent gourmet cuisine throughout many little restaurants, ocean breezes and birds flying around like hundreds of sea gulls, international visitors coming to the Presidential Palace or walking by the Bóvedas, which used to be a fort against the pirates when Panama was a colony.
Expats get together for lunch and continue to the causeway for a walk, bikeriding or simply enjoying a beautiful day with friends.
Properly said, not many expats actually live inside Casco Viejo... but many live in Panamá city, just minutes away.