It's plausible to me that the US stock market plays a larger role than in other countries. But you said it's the "primary thing everyone dumps their wealth into

It's plausible to me that the US stock market plays a larger role than in other countries. But you said it's the "primary thing everyone dumps their wealth into," which is a stronger, more surprising claim, and I wanted to see if it was true. Houses still seem to be people's biggest assets?