I want to start a print on demand business for passive income .
Can anyone doing it ?
Is it worth ?
Absolutely!
It is still worth and you can make huge profits out of it if you properly do marketing and if you spend enough time on that business. I Recommend you to watch biaheza’s youtube channel and see the videos of him on Print on Demand. Also Mentioning One of his Popular videos on T-Shirt Print on Demand. Best Of Luck. 
It is, but it is hard if you don’t have a public that acts as a base for your business.
Instagram stories ADs could be helpful if you don’t have a public, mostly with memes.
Thanks guys in 2 month I sold 2 products without any adv.
Nice, and are you doing that on only one printing site or with multiple sites?
Only on redbubble bro
Oh nice. wishing you the very best. More ideas to create more 
!