When a person dies and the money hasn't been spent, that's true life's regret!

In a lifetime, working hard, saving diligently to buy a house, and in the end, there's no one to inherit it.
Claiming there's no regret is a lie. When young, we always think there's plenty of time, busy earning money and striving, but forget that life is unpredictable and also forget to treat ourselves well.
No matter how big the house is, you can't take a single penny with you. Before you have a chance to enjoy life, all your hard work in a lifetime amounts to nothing.