"For some people", yes nowadays, it's for wealthy people only unless it's a house in the middle of nowhere.
In a tenancy, your rent can go up but most decent countries have legal restrictions in regards to how many increases you can do in a period of time and by how much you can increase it at any given time, and gives tenants legal tools to contest it if needed. And you still get the freedom to move to a different city without losing money. Here, most people don't do anywhere near 30 year mortgages so maybe that's more of a US thing.
In an ideal world, businesses would have customers that are all equally valuable. But in the real world, many businesses have a few customers that account for most of the revenue and the rest of the customers. Those few customers become your boss and they indirectly dictate significant parts of your business because an average customer not spending as much will be ok but a major customer not spending as much will get you sweating and looking at your cashflow.
In a tenancy, your rent can go up but most decent countries have legal restrictions in regards to how many increases you can do in a period of time and by how much you can increase it at any given time, and gives tenants legal tools to contest it if needed. And you still get the freedom to move to a different city without losing money. Here, most people don't do anywhere near 30 year mortgages so maybe that's more of a US thing.
In an ideal world, businesses would have customers that are all equally valuable. But in the real world, many businesses have a few customers that account for most of the revenue and the rest of the customers. Those few customers become your boss and they indirectly dictate significant parts of your business because an average customer not spending as much will be ok but a major customer not spending as much will get you sweating and looking at your cashflow.