And it's not just the large number of Britons among its 440 residents who worry about the future.
"Our English friends have done a lot for the village," says resident Annick Van Mairis. "Thanks to them, dilapidated houses have become beautiful. Our main fear is that they should have to leave for some reason or other."
In a country not renowned for being Anglophile, the warm feelings towards Alet's 60-strong British community are striking. Retired postman Gérard Baudru says they have brought "brotherhood" to the village - as well as work for himself. "The number of greeting cards in December and January is extremely high," he enthuses.