At least the US government heavily subsidizes leverage for real estate investment specifically, with institutions such as Fannie Mae for example. Absent that, no bank would offer a middle class individual a 30 year fixed rate loan for 80 - 95% of the value of a home. A loan to buy stocks on the other hand will typically be floating rate and the brokerage will retain the ability to liquidate your position AND require additional margin if your investments don't perform.

Fannie Mae has a short history page here for those interested: https://www.fanniemae.com/about-us/who-we-are/history

I think the only special thing, here, is that home purchases are the most common thing bought on leverage that can almost be seen as an investment? Only other leveraged loan that most people will do is a vehicle, and those laughably lose half their value as soon as you close the loan.