Is companionship important or blood is important?

Sun Zhuo was stolen for 14 years, during which time his adoptive parents cared for Sun Zhuo like their own sons. After Sun Zhuo learned that he had been abducted, he still spoke out for his adoptive parents: if his adoptive mother was sued, she would be unhappy.

In the past 14 years, Sun Zhuo and the family have had a relationship, although they still return to their biological parents, but it is said that his adoptive father blamed Sun Zhuo for being a white-eyed wolf, causing Sun Zhuo to go to school without eating lunch.

It can be seen that if Zhuo has always maintained a harmonious relationship with his adoptive parents, then who is willing to break this harmony and adapt to another unknown environment?

I think of Desperate Housewives, Gaby's child was mistaken by the nurse at birth, and when they learned the truth, the couple also realized that the unrelated children followed their own happiness, while their own children suffered in poor families. But the couple decided not to look for anything more for the sake of their children's physical and mental health. Although the two families who were replaced by the wrong child eventually recognized each other, after a short period of time together and careful consideration, both families decided to hide the truth and continue to raise children who were "not related to themselves by blood".

If children know that they are not biological, how can young children handle this relationship? The decision of the two parents is truly great!

In fact, is blood important, can it overcome feelings? Isn't decades of companionship more important than blood, you think?