Education: The more people know and the more they can think in context, the more they feel fit to counteract the stressor. Stressor specific knowledge is, of course, very important.
Skills: Stressor-specific skills are of utmost importance.
Philosophical approach to life: People with a strong religious foundation have been found to be able to cope with more stress than people without religious foundation.
Attitudes help most that have a humble perspective on how much of control people have over most of their live, embrace any life situation and accept it as is, and try to make the best out of any given situation. It helps also if people are able to look at crisis as opportunities.
Age: While young children up to the age of 3-4 years are usually protected from the quality of stressful life experiences of older children and adults, they do need the continuation of routines to feel safe. Of course, the stress reactions of their caregivers reflect on their emotional well-being very much. We are gifted with strong antennas from the beginning of our life for the emotional state of our caregivers.
Grandparents have much life experience and wisdom, which might help them to deal better with the stressful situation; on the other hand, their health might be frail, which makes them feel more vulnerable.
Sex: While in general, women are good in deciphering emotions and find it easier to listen and express them than men, men have, on average, a better practical orientation, and know how to fix things. But these are common stereotypes, supported by some research. In the end, both female and male characteristics count.
Fitness level: With poor health, people usually feel more vulnerable and, therefore, are more easily stressed.
Self-esteem: People who have experienced themselves as successful solvers of meaningful problems before, have more trust in themselves that they will be able to master all current problems.