I myself love to paint, but for lack of time it remains at two frames per year. When I started my last picture, she was six and always looked excited and wanted it then also try how to paint pictures with brush and was quite unhappy because it did not want to work.
The watercolors were too pale or too dry and their cats and rabbits and sunflowers she did not like then.
When we accidentally walked past the toy department some time later when shopping, they had "painting by numbers" just in the offer. ^^
That seemed to be the simplest, although my daughter would have preferred the Princess Barbie motif.
That too was still quite difficult for them to imagine the fields exactly.
This motif is super as Maleinstieg, the color is already finished and you only have to imagine. And even the few colors per se do not bother, after all, heck yes be age appropriate.
In many fields, and colors lose just young beginners quickly the desire and motivation, because it is too difficult.
Anyone who has for 11 years "painting by numbers" makes now, should better choose another motive to it, big pictures of longer painting fun there is enough. A star is unjustified. One should not judge by its own level. And on the package is indeed an indication of age. ;) And if that's not enough, you can paint himself so easily.
The picture is the way with me on the shelf. =)