Once again, one more “newbie” question, until you realize an account does not define the person behind it.

So, is
BTC really the ideal tool to replace banks in typical loans and mortgages, or is it only designed for big players and small-scale charity "loans" like we usually see in this forum?
Bitcoin was not made to replace traditional currencies and their banks, governments are responsible to control the traditional currencies and banks because they are centralize but Bitcoin is decentralize and that is why the government can not control it. Bitcoin is not going to replace them in the future or now because Bitcoin is not acceptable in all the countries in the world. Bitcoin is just a digital assets, it get more valuable in the future. Anybody can loan out their Bitcoin as business but it do not mean everybody will do so.