Of course, for people who have no foundation, it may be more difficult to learn to draw. But learning to paint is not just through manual practice. To understand the basic principles of painting, start painting. A good painting course will lead you to the right path. Beginners suggest starting with a simple sketch, which will make learning easier.
More importantly, keep learning enthusiasm and perseverance. After all, learning painting is not a three-minute heat, but a long practice. Learning to draw takes time and sustained energy. However, it will be a very fulfilling experience if you can finally draw your own satisfactory works.
In short, don't give up your original heart just because you are an adult. Learning to draw requires great courage, patience and determination, but don't give up easily. I believe I can learn to draw!