The only way that economists can distinguish between normal and low-end goods is to see how consumers react to changes in income  If people's income increases and the demand for something becomes smaller, such things are low-end goods
Similarly, if people's income decreases, their demand for low-end goods will increase
In an aging community, the demand for gasoline is getting smaller and smaller, and the demand for home care services is increasing. Compared with gasoline, home care service is a low-end goods.