There could be a few factors.
Depending on what area of country you live in, you don't have to be wadded to have a huge house. At 25 me and OH got accepted for a mortgage on a 21k and 41k salary (5 years ago). Our house is huge, 2 living rooms, 4 bedrooms, extension with huge kitchen, garden etc. We get comments about how rich we are when people visit us but our salaries were pretty modest to get the house.
SIL and her husband just bought a lovely house, they are a teacher and bricklayer. Has a double garage, semi detached, bar room in the garden, 3 bathrooms. They have extended themselves quote far with the mortgage, but it is affordable, just at the sacrifice of other things.
Another friend and her husband both wfh, modest house, but have 2 quite flash cars because they love cars, they aren't wadded, but would rather their money goes towards that than other things. So again would probably give the illusion they have lots.
Basically what I'm saying is when people have flash nice stuff, it can mean a few things.
- Luck, buying at right time & right place.
- Over extending themselves. Not necessarily debt but being willing to push self to limits.
- Sacrificing other things to prioritise a purchase important to them.
- Debt & a desire to keep up with the Jones (what ever the saying is)
- Or they could just simply be rich af, but I find it very unlikely everyone you live around just happens to have oodles of cash.