Most cultures have this feeling, particularly among the elderly. If
anything, Americans tend to reject it more than most cultures.
Often older things are over-engineered, which causes them to last
longer and endure hard usage. A business that has been producing an
item for awhile starts to find ways to either reduce cost, or improve
some other important attribute (such as reducing weight), often at the
cost of reducing durability for the end user.
Once a product has been
around long enough, multiple businesses compete in a race to the bottom
to produce the cheapest product that will hold together long enough to
leave the shop. This applies to everything from microwaves to things as
mundane as shoes. (Shoes made with older technology cost more, but they
also tend to last longer).
Older cars were made under the theory that, in a crash, the car
should show as little damage as possible, and hence were made of thick
steel; the body panels were often not load-bearing and could be easily
removed. Newer cars (i.e. engineered in the last 30 years) are designed
to simply fall apart in a crash, keeping the occupants safe by allowing
the car's frame to absorb the energy involved in a crash by crumpling
and going to pieces instead of transmitting the energy to the occupants.
Of course, this does destroy the car.
There are also maintenance
issues. It used to be the "tree-shade mechanic" could fix an engine with
basic tools, but newer cars require complicated and expensive tools. On
the other hand, these efficiencies and cost reductions have allowed
more people to afford a car; the U.S. population increased by 55% from
1960 to 2000, but the number of licensed drivers more than doubled over
the same period.
This also highlights the selective enforcement of this and other Nostalgia Filter-related
tropes. Though there are far more cars on the road, and far more miles
driven, fatalities have remained level (fatalities-per-mile in the U.S.
have decreased by 75% over the last 50 years), although mostly due to
legal enforcement of safety measures and tighter laws on some subjects
(e.g. mandatory seat belts and lower alcohol limits for drunk driving).
Houses are another good example. Sometimes after a major
disaster- like a hurricane- all the houses built before a certain date
will have survived with minor damage, while newer houses are destroyed.
This shows something of a selection bias; the older houses had to
survive the previous hurricane, leaving only the most durable to face
this one (this applies to cars as well). Due to the evolution of
building codes, sometimes the newest houses also survive. In flooding
situations, barring really record-breaking floods a rather similar selection process will take place, though in this case it's more a case of where
the houses are built; the locations least at risk from flooding will be
built upon first, with development spreading into more vulnerable areas
as the town grows, or, again, the old houses on the floodplain were
destroyed in the previous flood.
Another housing example is the old breezeway. Older houses were
built with a breezeway to take advantage of prevailing winds to cool the
house in the summer. Newer houses have air conditioning and so the
builders don't bother with the breezeway. Guess which is cooler if the
power goes out in the summer?
For large structures like bridges, this is caused by a
combination of factors. Good engineers realized their knowledge of
materials and engineering techniques was incomplete, and tended to make
things much stronger than calculations called for (the Brooklyn Bridge
is over-engineered by almost an order of magnitude). At the same time,
less well-designed structures have collapsed or been replaced.
Another factor is (steel reinforced) concrete. Most building
materials have a "shelf life" of several millennia unless some rather
unusual things happen to them - after all, they are stones that survive
being exposed to the elements in nature as well. The big exceptions are
limestone (which cannot handle acids), concrete (some types of which
decay and degenerate under certain conditions) and steel (which rusts).
Steel reinforced concrete structures only last a century or so without
maintenance before the rust starts popping apart the concrete and
weakening the structure beyond repair. There is nothing keeping the
Roman aqueducts from lasting another millennium (baring human
intervention) because there is nothing in them that could rust, degrade
or fall apart.
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