Earlier quoted context omitted.
It's easier because it doesn't require any sign-up. You simply download some compatible software and you're ready to run. Every other of the 87 services requires sign-up, which means filling out forms and uploading photos of ID. If you're lucky to be in a well-developed country with proper ID, you might be able to get an account!
You need to sign up for a bank account if you want to use bitcoin in practice. Meeting up with random people in the streets to trade money for digital currency is definitely not easier than signing up for Venmo.
Acquiring bitcoin will become incredibly simple with services like azte.co, which work in pretty much the same way that most people used to top up their pay-to-go phone less than 20 years ago. People forget how rapidly things move.
If you think at the level of "this is how it works now", you will never comprehend the potential of Bitcoin. The exchanges which operate in the bitcoin space now will be about as relevant as phone booths were as a means of making phone calls remotely. People will forget they ever existed.
The way most people will acquire Bitcoin in future is the way they currently acquire fiat money - in exchange for their time and labor. There won't be any other "exchange" process.