It's not that complicated to get, some of them have useful features.
It's just a personal tradeoff between features, downsides, and risks. Most people don't consider the risks at all (implicitly down-weighting that factor), and the value assigned to the features and downsides varies by person. I have some smart lights, because I like the convenience of those lights being on voice control. My TV is "smart" but doesn't get internet because I don't consider the risk of ads acceptable.
It's just a personal tradeoff between features, downsides, and risks. Most people don't consider the risks at all (implicitly down-weighting that factor), and the value assigned to the features and downsides varies by person. I have some smart lights, because I like the convenience of those lights being on voice control. My TV is "smart" but doesn't get internet because I don't consider the risk of ads acceptable.