Simplify the following text for a Grade 4 native English-speaking person.
Original: 23.90 % of all households were made up of individuals and 11.60 % had someone living alone who was 65 years of age or older .
Simplified: 23.90 % of all households were made up of people living alone and 11.60 % had someone living alone who was 65 years of age or older .