I grew up in poverty and as others have said it is all relative and what your base line is .
I think people feel "poor " not wealthy when they compare themselves to others e. g they work with / kids go to school with and state they can't afford holidays or a fancy car .
As others have said those that are comfortably off have a choice . They can choose to live modestly i;e run an old car, not be interested in buying new clothes .
I think people can be really tone deaf at times when they moan about hardships they perceive . I don't want to open that can of worms again , but the vat on private school fees was a recent example .
They can choose to buy a decent pair of shoes and not some cheap crap for them or their child that will fall apart in months if they are lucky .They aren't wealthy but aren't "poor " either .
Being in poverty is worrying about the essentials of having a roof over your head , having enough to eat , trying to keep warm .
I am grateful that the majority of people and children who grow up now do not have to experience this , but child poverty is still sadly an issue for too many .
I think a lot of people don't really get and are critical of those that are poorer than them who choose to spend money on what they would see as non essentials eg a netflix subscription , a few drinks in the pub once in a while . They see if they cut back on these then they would be able to save for x and y . This is not really the case as those that are poor are making a choice with the very little they have and cutting things elsewhere ( and some even don't have that ) . They are trying to eke out a little bit of joy in an otherwise difficult life where they are constantly worrying about bills , food and if something breaks down .
It is also about having buffers and a safety net . When you are poor , you don't have that . You don't have the well stocked food cupboard or are able to use savings , borrow from family.You don't economise by choosing not to take a foreign holiday this year /- you are making stark choices about food. / bills / heating .
Wealthy is a step way beyond being comfortably off when you are living a lifestyle that only a small percentage of people can appreciate .