Repeated use: Your little one is, presumably, in and out of their car seat every day, sometimes multiple times a day. Over time the materials deteriorate, constant impact of heat, cold, sun, age, and just constant use can make seats unsafe to use.
Improved technology: Technology is always advancing, and safety standards are always changing. A seat that you purchased seven years ago only has the safety tech from that time and was tested for the standards of the time – we’re always learning more and more about how to better protect your little ones.
Discontinued: Once a product has been discontinued, it becomes more difficult to get replacement parts – companies won’t continue to manufacture replacement parts after a seat has been discontinued.
Invisible damage: Over time there might be missing or damaged parts that you can’t see with the naked eye – internal mechanisms that have broken or fallen off, but still impact the integrity of the seat.