It might be that rampant piracy of Photoshop is part of the reason it is so dominant though. Every kid who had some desire to edit images pirated Photoshop, an

It might be that rampant piracy of Photoshop is part of the reason it is so dominant though. Every kid who had some desire to edit images pirated Photoshop, and thus they get used to using that particular tool. If they actually end up working in a real business doing this for a job then they will demand the use of Photoshop because it's what they already know and few businesses pirate their software.