The primary reason more older adults in western countries live on their own today than ever before is

The simple answer is a Better Health and Stable financial position

In Developing economies where a general household is low-income, older parents are seen as the responsibility of the children.

With poor medical facilities and a non-existent government pension program, most people aged 60+ cannot work, have low income and suffer from diseases.

In such a case, their children take care of them and live together in a house.

In the Western world, adults earn better have have better medical facilities, which leads to more Independence, freedom and non-reliance on the family.

To prevent the population from overgrowing

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath.