@shylatte I am in a reform synagogue and my synagogue is more focused on things like social justice and helping refugees. We are trying to get people more engaged with their Judaism, but it is very hard as the young people have their own lives and their own activities; also it is harder to build a community when your members are scattered all over london and beyond (i belong to a central london synagogue, and reform jews would move to a place with few jews but orthodox Jews never would). Compare that to an orthodox Jewish community where everyone lives within 0.5 miles- its easier to form friendships. It is easier to get help if you are religious. Yes technically any Jew can go to the gemach (place which lends out clothes toys, electric goods money, wedding dresses etc) or you can get food parcels sent to your home (they don't check income either so I guess its a honor system); but these places are run by very religious people so you would probably feel more comfortable approaching them if you are religious. Also you would only be able to form meaningful relationships if you keep strictly kosher as religious jews would not be able to eat at someone's house where they didn't trust the kashrut. Thats also a big reason why young Jews would primarily form friendships with other religious Jews even if they have normal jobs--- it is much harder to be friends with someone if you can't eat with them (reform jews don't have such constraints). my SILs are vegetarian and much more liberal about kashrut than most orthodox jews so they do have non jewish friends despite being observant.
Haredi Jews are more likely to be poorer as the men learn full time and they also have more children surviving on one income. Modern orthodox don't actually face that many obstructions to earning a decent income if they have a degree and can work in an office job/in the NHS/civil service (as these jobs tend to be more flexible around shabbat; and you can always break shabbat to save a life if you are a doctor).And modern orthodox tend to be quite well educated; my MIL's close personal friends include 3 oxbridge graduates, 3 doctors, an accountant, an ex lawyer and this is not unusual at all. my SIL is a creative and she once complained that all her friends/boys she would meet at Jewish society were very pragmatic about earning a living, but I do think that it is understandable. The Haredim are happy to live off benefits, kind donors and do all sorts of cash in hand businesses (and also lead a simpler life); but the modern orthodox have similar living standards to secular society and also send their children to university, pay for their weddings, give them housing deposits. Except the big difference is that they are restricted to Jewish areas in North London, Herts and Manchester; and most of these areas are quite expensive to live in if you are not a professional. So they advise their children accordingly. There was a thread earlier about how people in trades outearn their counterparts in university by age 21 so more young people should become tradesmen if they want to earn serious money. I was telling my DH that most religious modern orthodox jews probably wouldn't give their kids that kind of advice, I mean, I am sure there is some rich Jewish plumber on 200k out there who manages to earn that kind of money and keep shabbat at the same time but what would you think of a plumber not coming to your house because its Friday/Saturday? If you are a doctor or accountant, your clients would not mind if you go home at 3 pm on Friday. So Jews do encourage their children into academia and not just because they historically valued education.