I agree with that.
My dc had cheap mobile phones on Payg. I put £20 on once a year. They knew data was for emergencies only. As adults they still have payg or cheap contracts of less than £10 a month. So do I and dh. I've only recently started paying more than £5.
My dnes (same age) had one on a contract for £30 and when dsis was complaining about expenses, that was something I pointed out didn't have to be as expensive. She said it did because anything less wasn't worth having. 
So that was £120 a month (4 of them), nearly £1500 on something we paid £100 a year (5 of us) plus cost of phone (dc's were normally second hand)
Growing up, if things broke we knew if it couldn't be repaired we would be waiting until birthdays/Christmas for a new one. Even then we might not get another if the price had gone up. We walked, mended, made from left-overs, almost never ate out, bought second hand etc.
Someone on here recently was saying they can't afford to get carpets. We had bare floorboards throughout the house for at least 6 months, if not a year when we moved house as a child. And df put them in too. My bedroom never got them in; dm made a rug for me out of spare fabric, and df varnished the bare floorboards so it looked nice.
And my parents still have most of them still in - beautiful 70s designs, if that's not a contradiction in terms. We looked after them with protectors and rugs because they were expensive.
I'm not saying that's a good way to live all the time, but we accepted it. Now the expectations of people have gone up. They don't expect to mend. They don't expect to have to get second hand. They want to get a coffee/lunch from a shop rather than take their own.
And I'm as guilty as anyone, especially of the latter.
And I think on the mending, part of the problem is that df and dm were taught at school how to do DIY, wire a plug, put up shelves, mend a hem, darn etc so they were able to do it. I suspect a lot of people just don't know how to do basic DIY. But most people will throw away rather than mend.
Yes, this will not change the income to get a better house. But saving up and spending money wisely would help some people to be able to choose luxuries that they want rather than just spending it and not noticing.
I hold my hands up guilty too.