Why age is different from breed or ancestry
Breed and ancestry testing work by comparing genetic patterns and markers. Exact age estimation is a different problem entirely and is not what standard consumer cat DNA reports are designed to solve.
That is why age questions usually need to be approached through veterinary assessment, physical indicators, and documented history rather than a typical at-home DNA kit.
Why the myth is so common
Owners of rescues and found cats often have large gaps in background information. When DNA testing can answer some identity questions, it is easy to assume it can answer every unknown as well.
In practice, the best use of testing is to fill in genetics-related gaps while using other sources to estimate age.
What the test can still do for a cat with unknown history
Even when age remains uncertain, DNA testing can still help with breed clues, ancestry context, and in some cases health-marker screening. If that is your situation, start with what the report can tell you rather than focusing on the one thing it cannot.
That shift alone often makes the purchase decision much clearer.