本人三年半前（2016年8月）永居后给孩子申请了child benefit, 当时孩子和老婆没有达到5年期限，一直是Tier 2 dependent, 当时是以我的名义申请的，还特意给HMRC的人解释了我孩子的情况，还是拿到了benefit. 今年孩子老婆要办永居，查了下网站，居然发现孩子是不能有public fund 的，好像现在拿了永居以后也不能（看以下粘贴）。请问是这样理解吗？这样会影响配偶和孩子的永居申请吗？如果有的话，有解救的方法吗？谢谢。
Family members (dependants)
Your partner and children under 18 can apply on the same form as you if they’re eligible.
Eligibility for partners
Your partner may qualify if all of the following apply:
they have permission to be in the UK as your partner
they’ve been living in the UK with you for at least 2 years if they applied before 9 July 2012 or 5 years if they applied on or after 9 July 2012
your relationship is genuine
you intend to continue living together
you have enough income to support yourselves and your dependants
you’re not using public funds
They must:
pass the Life in the UK Test
meet the English language requirements
Eligibility for children
Your child can apply if they:
were previously given permission to stay in the UK as your child
are not married or in a civil partnership
will live with you and be supported by you without using public funds
You and your child’s other parent must both be settled in the UK legally, or currently applying to settle, for the child to be allowed to settle.