I've had amazing success with PlastiDip, but like all things in depends on how you use it. It's not for everyone, but you can have great success with it. Please don't dismiss it.
As with regular spray paint, the surface must be properly prepped. Wash and clean the surface, and once dry I use alcohol to wipe everything down about 30-60 minutes before spray. If you touch it shortly after spraying, of course you will damage it. Just like regular paint it requires about a week to cure. Top coats and automotive waxes can also be applied to strengthen the paint job.
I've plastidipped my motorcycle a few times over the years, each paint job sitting for 12-24 months through DAILY use of 1-2 hours of commuting and weekend journeys upto a thousand miles in two days time, abuse from the sun, heat, cold, boot scraped, magnetic tank bags, jacket zippers, etc. I've never had any of my paint jobs tear, rip, or become damaged.
So in short, it depends on how you use it. Dip can be a great asset. Properly prep the surface, build up lots of coats, and give it ample dry time. I'm about to dip my son's Lightning McQueen and then he can choose another color next year if he chooses. If I spray a complicated pearl or holographic dip and mess up, peel off and try again. Here is a little eye candy of my bike throughout the years.