You bake a good loaf of bread, and someone says you should sell it.
They mean it as a compliment. It is a compliment. The bread is good enough that they can imagine paying for it. Somewhere in the next few minutes, though, a perfectly pleasant Saturday activity has acquired packaging costs and a question about local delivery.
There is nothing wrong with selling bread. There is also nothing wrong with making one loaf, eating a slightly unreasonable amount of it while it is warm, and doing something else next Saturday.
An interest can start quietly. You like taking pictures of birds. You buy a small set of paints because the colors look good together. Then you start looking at what other people do with the same interest, and a casual pastime begins to look underdeveloped. They have a page, better equipment, a schedule, an audience. You have a picture of a bird you cannot identify.
Some of those possibilities may appeal to you. Selling your work can be satisfying, and so can taking a skill seriously. But running a business adds work of its own. Customers need answers. Orders have deadlines. A Saturday spent baking for pleasure feels different when six people are expecting their bread by noon.
The question is whether you want that work along with the baking.
You may like being a beginner more than you expected. You may enjoy getting quite good at something that earns no money at all. You may be an enthusiastic gardener with six pots and no ambition to explain soil amendments on camera.
You can still share a picture, take a class, improve your technique, or spend a little on something you will use. A hobby has plenty of room for ambition. The useful distinction is whether those choices make the activity more interesting to you. Learning a difficult piece of music might be exactly what you want; maintaining a channel about learning it might be a chore.
There is room to change your mind, too. Selling a few things does not obligate you to become a brand. Deciding you liked the baking better than the orders is useful information, even if the orders were going well.
There is a particular pleasure in having an interest you can return to at your own pace. You can put it down during a busy month and pick it up without explaining the gap to customers or followers. The materials are still there. So is the part you liked.
You might make another loaf next weekend. You might make the same loaf for ten years. People who get a warm slice will probably remain very supportive of the whole enterprise.