The results of our study provided evidence for a negative linear relationship between age and stress levels—younger people experience more stress than older people—contrasting with the existing literature suggesting an inverted U‐shaped relationship between age and stress (Stone et al., 2010). The findings of the present study are in contrast with a recent study of the COVID‐19 outbreak, which showed no association between age and stress levels in a Chinese sample (Wang et al., 2020). Rather, our results support the findings of Limcaoco (2020), who, in a sample of people in quarantine across 41 countries, found age to be significantly related to stress levels. Our evidence warns that we cannot neglect the mental health condition of the younger generations as they seem to be the most stressed during the COVID‐19 outbreak.