The most effective way to exercise for fat loss is to create a program that combines high-intensity and low-intensity exercise. Thatâs because each type of exercise promotes fat loss in different and complementary ways.
Since you asked, I do think it is odd that your grandchildren sleep with you if you have other accommodation available for them. Also, a nine-year-old should be able to bathe or shower alone. I would worry more about lack of independence at that age than anything improper, but at age 9 I would expect a boy to be more modest than you are describing.
Young children typically require greater supervision and care. Children under the age of 10 should typically not be left alone at any time. In many cases, teenage children can be left alone for short periods of time. So..... basically, your sister was fine to be home alone. However, I do agree NOT ALL NIGHT.