Hi, thanks for replying! They were very long articles… 
Particularly interesting (to me) is to why, if poor you may buy a most expensive item, just to help help you fit in to society, have what 'the others' have. I appreciate, being on poverty would have many detrimental effects on many different areas of your life.
I find this interesting too. I grew up very middle-class in a well-off family, in a solidly working-class area where many people had been out of work for a long time due to the deindustrialisation of the 1980s. The poorest of the kids still managed to have the best trainers. Mine were pretty cheap, not ShoeZone cheap but not Nike, Adidas etc. - more what my parents would call good-quality, sensible trainers . Not wanting to look poor, like you said "fitting in", is a big part of it, and I think a lot of it comes too from parental poverty - their parents would've grown up in the 70s and lots of them would've had to wear visibly cheap clothes, and not wanted their kids to have to go through the same thing. Nobody was going to think I was poor, not when I lived in the big house. Still got the piss ripped out off me, but for different reasons.
And charity shops were places most people would never dream of going to because it would make people think they were too poor to afford their own clothes instead of somebody else's castoffs. Whereas for my family that wouldn't have been an issue.
Also, my own experience when looking at separation from husband , I was amazed at the amount of benefits I would have received. I could live on that and wouldn't hAve described myself as being poor.
IMO this one is tricky. You're right in that for people in some situations, benefits money is plenty, especially if you already have a good quality, secure place to live, with good newish appliances and maybe a car, and reasonably-priced electricity and gas, and, more importantly, the cultural capital, daily living skills, and mental resilience to make the best use of that money and hopefully get back on your feet and earning. A lot of it, I think, is hope - you have no reason to believe that for you, a life on benefits could be permanent, and you probably won't end up in one of those permanent cycles where it's really hard to pull yourself up because of the situation you're in.
I'm trying to think of an article I read, Polly Toynbee maybe? about how ludicrous it is when politicians etc. say how easy it would be for them to live on benefits, and when people do "living on benefits" experiences for a week/month to demonstrate how doable it is. They usually don't have an incident where the door breaks cause it's knackered, and your hearing costs go way up for that week, and then your kid comes home the next day having ripped his school bag in an accident and desperate for a new one (and it "has" to be the right bag, and you're angry but just want to your kids to be happy, but £30 is a lot of money and you kinda want to tell them you can't afford it, again).
But yes a lot of the time benefits are enough to live reasonably comfortably on, and I think that's what we want in our society - I think that on the whole, people who have other options don't generally choose to sit on benefits because it's easier, even tho some of them look to an outsider like they're doing just that - there's a lot of issues around qualifications for jobs, daily living skills, mental health, literacy, confidence, childcare, community etc.
I think mostly the eugenicists were probably doing what they thought best for the good of society, who wanted to reduce suffering. I don't think they were all evil people.