People fear sudden fame, just like they fear getting too strong. Once you gain some abilities, people will flock to you with requests.
Su Qing is essentially a nouveau riche, and combined with the nature of his job, his relatives hadn't even realized what was happening before he rose to success.
Especially after he made money from stocks, initially when it was just tens or hundreds of thousands, his mom, Zhou Hui, would mention it. But later, after he scored big, even she stopped commenting on it.
She understands the principle of not revealing one's wealth. Especially the older generation, they might have some traditional habits, but some principles of life are still worth learning from for young people.
Even though a relative saw his so-called "Stock God" nickname online before the New Year, they didn't know exactly how much he made. Plus, he didn't show up online much, so some people didn't even associate it with him.
