It just depends on how people live, if they have work to do and don't have time to spare for trading then doing it passively would be a great idea for those people. And then if you are still young and still have time to spare you may want to do trading time by time as long as you can afford it, because making money when you are still young will be beneficial for future.

Of course you have to be mentally stable and not to be stressed to much when doing trading because it could affect your overall result later in trading.