People living on Floating Islands

We did a day trip on a boat, out to Uros, the floating island people.  Incredibly interesting, but their way of life and culture is doomed.  They subsistance live and supplement their lifestyle with tourism. But I can't see the younger generation continuing this tradition.  They make the base of their community on a bed of reeds that float.  Hundreds of years ago, they did this for protection of not being found by the Spanish invaders.  No reason to live like this now, except these are the poorest of the poor with no land and only fishing skills to exist.  There are 5 to 10 families living on each island, 56 islands, 2000 people make up this culture.  Each family on an island has a bed hut made of reeds, but everything else is communal on that island.  The communal kitchen is the only fire, and this is built on a clay pot base.  One island holds a school, another a hospital, and another...a 7th Day Adventist Church.  Their boats are reeds and this is how they travel between islands.  The islands are not tied to each other, but anchored to reed beds for safety in times of storm.