…bject and then we would have access to 'age', but this was done just for the demonstration purpose. Arrow functions are especially useful for callbacks and functions like filter or map, when trying to access a property from an outer scope.
Stop splitting your life into work/life, and workweeks and weekends. This only creates a negative association to work part of your life. Treat everyday, and everything as you want to do it, not that you have to do it. As long as you are obligated to do anything, you are failing at life.