Why do so many people jailbreak their iPhone and how can you jailbreak the phone?

Why do so many people jailbreak their iPhone and how can you jailbreak the phone?

Jailbreaking allows us to add a number of useful modifications that we normally be allowed to do. For example, making toggles to switch on data without going to settings, changing the look of icons on home screen, being able to set buttons to do something(like double tapping lock button turns my flash on to use as a flashlight)
As for how to do it, depends on your phone model an current iOS

It's usually only kids and young teens which jailbreak their Apple devices, to look 'cool'

You will never NEED to jailbreak, and the iPhone has most of the features you will ever need.

I wouldn't recommend jailbreaking because it voids your warranty, slows down your phone, makes it crash more often, increases the chance of your phone messing up and all your data getting deleted (unless you have it backed up)

Worst of all, jailbreaking makes it significantly easier for your phone to get viruses or for it to get hacked.
Also, people have reported their phone getting 'bricked' which means whatever you do, it's impossible to turn the phone on unless you get a repair, which will cost even with your warranty.

Most people who jailbreak say it's perfectly safe, and only 1 in a billion actually are affected by the bricking problem or viruses, but it simply isn't true.