The verse 34 of the surah Al-Nisaa is not limited to the superiority and responsibilities of a husband regarding his wife only. This verse is vastly applied for the superiority and responsibilities of Muslim men in general. A father is a ruler of the family according to this verse. So he is responsible for his daughters' wellbeing. The brothers are also responsible. Rather the men of the whole Muslim society are responsible. A Muslim shouldn't act as a frog at the bottom of a well so that if it is informed about the huge stores of water in oceans and rivers etc. it cannot accept this truth because it has not seen the upper earth. Quraan must be understood as a whole. Regarding one thing all or many texts about that thing must be considered. It is not possible for me or for any person to present this whole ocean-like light of the Holy Quraan within short time for the understanding of its rulings. I have taken many years to understand it. You also need its thorough study for long time. But at this level you should listen to those sincere advisers who have passed their lives in a struggle to understand the Holy Quraan.
Suppose you are a father having young daughters of marriage age or you are a mature adult brother having young sisters ready for marriage. Will you let them do their marriages at their own and then go into sufferings at the hands of unserious men who take benefit of the weakness of women and just play and pass time. If anyone deprives you of your authority to stand at the back of your daughter or sister then will you not apply the Command of Allah All-Mighty as given in the verse 34 of surah Al-Nisaa to protect the rights and status of your daughters or sisters as the case may be???
Surah 35:18
And no bearer of burdens will bear the burden of another. And if a heavily laden soul calls [another] to [carry some of] its load, nothing of it will be carried, even if he should be a close relative....
Surah 6:164
... And every soul earns not [blame] except against itself, and no bearer of burdens will bear the burden of another...
Surah 17:15
Whoever is guided is only guided for [the benefit of] his soul. And whoever errs only errs against it. And no bearer of burdens will bear the burden of another...
Surah 39:7
If you disbelieve - indeed, Allah is Free from need of you. And He does not approve for His servants disbelief. And if you are grateful, He approves it for you; and no bearer of burdens will bear the burden of another...