This is a wise decision since delegation does get a daily reward. It becomes a passive income that you do not need to manage especially when you are too busy.
With your busy schedule, it can be hard for you to enter the Hive platform regularly.
Another way to earn a passive income is to set up auto-upvote using https://hive.vote/ that you can consider.
This is how many Hive users are able to earn passively while supporting their quality content creators.
Use the fanbase in https://hive.vote/ to put in the username of content creators that you want to support.
Choose the time delay about 5 min before auto-upvoting. Choose how many times to upvote a day and how many times for each week.
Every 100% upvote uses 2% of your upvote mana that will take you 144 minutes to recharge.
We will try to keep our voting mana above 80%.
Some do follow curation trail. If you follow a trail, whatever the person upvote, you also upvote.
With 100k Hive, there are many ways that you can earn passively so it is good that you keep exploring new ways to see which ways you like and you feel is more profitable especially when you are too busy to manage your account.
Hope it is a useful information for you to earn passively even when you are busy with work.