Writing novels required a certain amount of imagination and literary attainments. Not everyone was suited to writing novels. There is no standard age limit, but generally speaking, young people may be more creative and inspired, while older people may be better at describing details and emotions. Writing a novel requires a lot of time and energy, and it requires constant practice and improvement, so not everyone can successfully write a good novel. But as long as you have passion and creativity, and are willing to invest enough time and energy, you can start writing novels.