You are right in a way OP, the media does present this as the 'live your dream' lifestyle and doesn't represent the whole range of ways that people live. All the ads - mum, dad, 2.5 adorable kids, nice house, nice car, holidays abroad. That's because I think that we can all look at that and think it's a happy life, even if it's not what we want personally, or have personally. Advertisers present a vision of life that isn't supposed to reflect reality for most people.
'Well-off' Suburbia has never appealed to me much, although I have to say it looks better than most of my living conditions through my life, and I could put up with it if I had to. On the other hand, DP lived that life to a pretty good extent for a long time, nice house, nice kids, nice car, plenty of money, lots of holidays abroad, but left it because he wasn't happy in himself and now lives a life a skint hand-to-mouthing in a little rented flat in a grot town with me, but is happier. We have our dreams of course. Suburbia isn't it. One of my in-laws lives a lifestyle you'd think would be perfect and very happy, loads of money, fab big house, BMW, private schooling, not having to work, but she's starting making noises that not all is rosy. Material possessions don't seem to have much connection to happiness. But of course advertisers can't tell us that, their whole aim is to want us to crave more material possessions, the ones they are selling. they have to present this as the ideal.