What is the best tool for creating simple 3D animation?

Question

3D

Tell me the program most suitable for creating such 3D animations:
https://www.youtube.com/watch?v=Qc_bor8hnCQ&t=53s
https://www.youtube.com/watch?v=gAnoYRqxItk
https://www. youtube.com/watch?v=2GD7f9AyMBI
https://www.youtube.com/watch?v=X6n9el9AKfE
https://www.youtube.com/watch?v=APtj0r9HeAI
The priority is ease of implementation (and, accordingly, speed training, provided that he had nothing to do with 3D graphics before - from scratch), the speed of performing such work.
Please note that I am requesting the effect of a certain "cartoon", as can be seen from the above video examples. I would also like to create his performance quickly and easily, as far as possible, of course.

In collaboration with the main question, I will ask some more that are inextricably linked with it:
How, in terms of complexity, do you evaluate the task? How long will it take to achieve a level of program proficiency that would be enough to create such animations? What is the estimated time spent on creating one video if I master the tool at the required level? - all this in the context of using the program you recommend.
Thank you!

Answer 1

Any program will do. Any learn not 1 day and not 1 month, if "from scratch" in 3D.
The "cartoon effect" is nothing more than a rendering style.
Conclusion: for the result, it is better (faster, more efficient) to hire a specialist.

Answer 2

If you push yourself, you can master such animation in 3 weeks. Blender or Maya will help you.