Zero foundation, ugly painting, can you learn sketch?
Of course. Even if you learn to draw from scratch, you won't worry about the age limit. As long as you are interested, enthusiastic for three minutes or eager for success, you can't learn well. The main thing is interest, which must be maintained. I suggest you sign up for an interest class, which can save a lot of detours. Sketch is the basis of all painting, which is very important. I hope it helps you. _(? ω? 」∠)_