I've tried to post but original got lost, may yet appear in which case sorry for double post.
, Talkin, you appear to be deliberately misunderstanding, to the school's disadvantage, although perhaps I wasn't clear enough. So, in simple words
The school is well aware that while some people appear to be limited in cash, they have other sources of wealth to call on. If the school gave bursaries to these people they would be disadvantaging those without such access. So you are asked to declare such things as your rent/mortgage levels, income , any support, any assets, and you need to use your assets before having a chance of a bursary. Obv there is some discretion, they don't insist that you sell the family home outright or take on huge liabilities in mortgage interest, or that the mother goes out to work if she has v difficult caring responsibilities. But they try to avoid doing what you suggest. Another v famous school has a v similar system, so it is quite possible that it may be widespread.
This is also supported by the two examples I gave, where one family with two earners is prob about at the average income, no assets, the other refugee family substantially below.
( on trusts, completely agree most people will not have one nor understand them nor "need" them. But you can't pick up the Sun or mirror or watch Made in Chelsea without bring aware of them. Just saying...)
Life is complicated enough without assuming conspiracy..