This is the underrated "why iPhone" answer most people overlook.
An iPhone may be more "locked down" than an Android equivalent in terms of what you can install, but when the App store is so robust, you really don't feel any pain from the walled garden.
An iPhone user doesn't need to side load a bunch of software to get the job done -- the App store has high quality tools for 99% of use cases and most are available for a couple bucks.