What age can kids start drawing?
Children start making marks around 15 months and drawing on purpose around age 3, when most can copy a circle. A square follows near 4, a triangle near 5, and a person with a head, body and limbs by 5 or 6. Recognisable subjects come later than parents usually expect.
What each age can actually do
At 2 to 3, drawing is a physical activity rather than a picture-making one. Children scribble because the arm moves, and they often name the result afterwards rather than planning it. The useful thing to give them here is a big surface and no instructions.
At 3 to 4, closed shapes appear. A circle comes first, then a cross, then a square. This is the point where a child can follow a simple "draw a round face" instruction and get something round. Anything requiring two shapes to line up is still too much.
At 5 to 7, children can hold a sequence in their head — a face, then ears, then eyes — and finish a drawing they started ten minutes ago. This is the age where step-by-step drawing suddenly works, and where a child starts caring whether the result looks right.
What not to push
Do not correct proportions. A head that takes up half the body is normal until about 7 and correcting it teaches the child that their drawing was wrong, which is the fastest way to stop them drawing.
Do not introduce construction lines — the faint circles and guide marks used in adult tutorials. Young children cannot see them as temporary. They draw the guide, draw over it, and end up with a mess they are then told to erase.
A reasonable expectation
If a 4-year-old can draw a shape you recognise without being told what it is, they are doing fine. If a 6-year-old draws a person with a head, body, arms and legs, they are exactly where they should be. Neither of those requires lessons.
Where Draw Along fits
Draw Along is built for the 3-to-10 window specifically: every drawing is a sequence of single finished lines with no guides to erase, and the shortest ones are five steps so a three-year-old can finish something. The step count is shown before your child starts.