You might be right. However be careful, the graph doesn't suggest that all the decrease in clothing spending is siphoned into tech spending - it might be a coin

You might be right. However be careful, the graph doesn't suggest that all the decrease in clothing spending is siphoned into tech spending - it might be a coincident. If they draw more lines, you might see a similar increase in, say, books and education. Now what goes where? We don't know. All the graph says is that people spend more money on tech and experiences, and less money on clothing.