What is your guidance to wealthy families who spend their money on life's luxuries, which leads to their money not reaching the nisab at the time Zakat becomes due?

Man is a steward over the wealth that Allah has granted him, and Allah is the true owner. He must manage it well because he will be held accountable for it on the Day of Resurrection, where he will be questioned about his wealth: how he acquired it and how he spent it. A Muslim must be cautious of excessive indulgence, for the Prophet, peace and blessings be upon him, said to Mu'adh: "Beware of luxury, for the servants of Allah are not those who live in luxury." If the wealth falls below the nisab at the end of the year, there is no zakat due on it.