Dear,
you raised a good question since even after developing its own Programming language DART, it has announced KOTLIN as an official Language for Android Development. So in the scene arise of the question is very genuine.

Google developed Dart as a general-purpose programming language to build web, mobile, and desktop applications. Some benefits of Google developing Dart include:

1. Improved performance: Dart is designed to be fast and efficient, which can make apps built with it run more smoothly.
2. Better developer productivity: Dart’s syntax and features are designed to make it easy to write and maintain code, which can save developers time and reduce the chance of errors.
3. Better integration with other Google products: Dart was designed to work well with Google’s other products and services, such as Flutter and AngularDart.

As for drawbacks and risks associated with companies developing their own programming languages, one could be:

1. Limited adoption: If a company’s programming language doesn’t gain widespread acceptance among developers, it may not be used on as many projects, which can limit its potential impact.
2. Potential vendor lock-in: If a company’s language is closely tied to its products and services, using it may make it more difficult to switch to a different company’s products or services in the future.
3. Limited resources: Maintaining and developing a programming language can be a lot of work, and a company may not have the resources to keep up with it, which could lead to it being abandoned or not receiving updates over time.

Overall, whether a company-created programming language is a good idea depends on the specific circumstances and the goals of the company.