Homes are investments. It needs maintenance and support, and every so often some repairs. At some point, you would have to repair or replace due to normal wear and tear. Think of it like a car; some parts wear down earlier than others.
In the case of your water supply systems, some parts need replacement earlier than others depending on the type of materials.
Pipes have no moving parts, and these usually last a long time. However, due to the different materials used, these also have different life spans and possible hazards. Additionally, pipes are integral parts of the house. Depending on the time the age of the house, you can have lead pipes, copper pipes or even plastic pipes.
Copper and galvanised steel
Copper pipes last for more than 50 years. These are no longer manufactured in large quantities, but if you have an old house, these might still be in use. Due to their cost, these have been less favoured for some time now.
Galvanised steel is more common and cheaper than copper pipes. However, like copper, these have been slowly replaced beginning in the 1960s and 1970s.
Lead and Polybutene
Lead pipes are no longer in use. If you live in a house from the early 1900s or even earlier, these might still be around. You should have your water system checked for lead. That is easier to do than poke around tracing your pipes. If you have lead pipes leading to your tap, you should have them replaced immediately.
Those gray plastic pipes are made of polybutene. Although still in use, these can corrode from the inside by chlorine in the water supply. Due to this, the pipes thin out from the inside and fail without notice.
Different pipes in the system require a regular check-up. The pipes do not hamper the performance of the system, except the unpredictability of failure.