Portents for the future suggest we're in for a prolonged period of belt-tightening until the world is living within its sustainable means. I say this not to spread gloom but to avoid it by adopting a lifestyle, in advance, which doesn't depend on earning a high income. If high incomes do persist, despite all the signs to the contrary, then you will be in the happy position of having money to burn. First of all you don't have to have a house that is larger than your needs. The larger the house the more heating, cleaning, decoration, maintenance, furnishing and endless other costs there are.
Most big houses are only for show anyway.
If you're prepared to pay the price of showing off, fair enough. But for someone who hates cleaning and decorating, small is beautiful. Cars make you go weak at the knees from forgetting how to walk. Cars make people allergic to public transport which is more economical, causes less pollution and congestion, and is more sociable. They have encouraged a huge increase in crime.