When comparing Scratch vs Objective-C, the Slant community recommends Scratch for most people. In the question“What is the best programming language to learn first?” Scratch is ranked 21st while Objective-C is ranked 72nd. The most important reason people chose Scratch is:
Scratch was developed specifically for kids ages 8 and up as an exciting way to introduce them to technology. It's designed to be easy to learn, but still provides good depth in computational thinking.
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Pros
Pro Great starting point for kids
Scratch was developed specifically for kids ages 8 and up as an exciting way to introduce them to technology. It's designed to be easy to learn, but still provides good depth in computational thinking.
Pro Visual
Code is represented as visual building blocks that makes it easy to understand how a program is put together.

Pro Easy to learn
Scratch is designed to teach computational thinking rather than focus on specific syntax. It was designed specifically to be easy to learn for anyone over the age of 8.

Pro No need to be able to type

Pro Can be used to create games
Pro Highly structured
The language is highly structured. Therefore, it gives you the essentials of how to think like a programmer and teaches you good programming practices from early on, so you could write clean, working and readable code in the future.
Pro Well Documented
Objective-C's documentation exists on Apple's website, and explains language features in detail.
Pro Develop Apple applications
Similar to C# and Java, but used to develop native applications for Apple hardware.
Pro Objective-C supports an open style of dynamic binding
A style that can accommodate a simple architecture for interactive user interfaces.
Cons
Con Does not teach you programming
Learning Scratch might help you if you have high difficulty with logical thinking. However, starting with a proper programming language, especially an easy one, will give you the benefits of starting with something like Scratch and everything else.
Con For kids, so don't even mention it in a job interview: it makes you look like a noob.
Con Won't get you a job
Scratch is not a language used in the workplace. Instead it teaches computational thinking, helping to create a foundation to aid in learning other languages.
Con Strange OOP
Scratch has a very strange implementation of OOP that is sprite based, and will become very confusing when you move to other languages.
Con Odd Syntax
Objective C's syntax is very alien to other languages. Learning Objective-C first will fail to expose you to a syntax style that would be relatively familiar in almost any other language.
Con Might as well learn Swift
Swift works almost anywhere Objective C does, and it was designed to replace Objective C.
Con One of the biggest mistakes ever.
It was meant to be one of the C-style languages, but has such bad syntax design it actually is the odd duck.
Con Apple-centric and obsolete
Con Tied into Apple's eco-system.
Con More Technical
To be able to do basic tasks in Objective-C requires a strong understanding of programming.
Con Requires Understanding of C-language.
Objective-C is built on top of C, and as such, requires at least a basic understanding of how to program in C.
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