Passive income is good if you already have an active income that you can spend for your daily expenses in life. You need money to survive your basic need buy you need also to think of the future and your passive income will take care of that.
It depends on what type of passive income you are going to get. It's either in real life business passive income or in bitcoin, but in bitcoin I think that is a very hard way to have a passive income if you will just depend on a very few way of earning. But if you do a lot of ways like, sales in bitcoin, trading , investment in bankroll casino's. I think this will give you passive income.
Yes if you are a freelancer you can earn some but cannot expect huge profits, while if you are having a special skill like you are a developer then you can get paid much more from bitcoin apps owners and site owners who need help of developers because there are less developers here in this community and we badly need more.