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1. Your wife and daughter can go ahead and apply for UK citrzenship Without you applying. You can make a UK citizenship application whenever you want. Since each of you now have ILR, each of you has a free-standing right to apply for UK citizenship whenever you want. Just because your wife and child were dependent upon you before you got ILR, this does not mean that you have to apply for citizenship in order that they get citizenship. They can apply before you if they wish and get citizenship and naturalisation.
2. Both your wife and your daughter will get citizenship even if they apply without you. Their entitlement now stems from having ILR. It is no longer dependent upon you.
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