Why did Pu Songling say that he didn't mean to pretend to be secular?

Wearing worldly clothes was persuaded by children and grandchildren. Pu Songling called the tribute clothing, the symbol of the highest fame in his life, secular clothing, saying that "it was not his intention to make secular clothing" because he had to be persuaded by his children and grandchildren to wear this kind of clothing, hoping that future generations would not laugh at him after watching it. Pu Songling, a word fairy, a word sword minister, alias Liu Quan lay man, known as Mr. Liaozhai in the world, calling himself Yi Shi.