Ayesha (l.a.) demonstrates the method of Ghusl

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، قَالَ حَدَّثَنِي عَبْدُ الصَّمَدِ، قَالَ حَدَّثَنِي شُعْبَةُ، قَالَ حَدَّثَنِي أَبُو بَكْرِ بْنُ حَفْصٍ، قَالَ سَمِعْتُ أَبَا سَلَمَةَ، يَقُولُ دَخَلْتُ أَنَا وَأَخُو، عَائِشَةَ عَلَى عَائِشَةَ فَسَأَلَهَا أَخُوهَا عَنْ غُسْلِ النَّبِيِّ، صلى الله عليه وسلم فَدَعَتْ بِإِنَاءٍ نَحْوًا مِنْ صَاعٍ، فَاغْتَسَلَتْ وَأَفَاضَتْ عَلَى رَأْسِهَا، وَبَيْنَنَا وَبَيْنَهَا حِجَابٌ‏.‏ 
قَالَ أَبُو عَبْدِ اللَّهِ قَالَ يَزِيدُ بْنُ هَارُونَ وَبَهْزٌ وَالْجُدِّيُّ عَنْ شُعْبَةَ قَدْرِ صَاعٍ‏.‏

Abu Salamah narrates, I and `Aisha's brother went to `Aisha (l.a.) and he asked her about the bath of the Holy Prophet (s.a.w.a.). She brought a pot containing about a Sa` of water and took a bath and poured it over her head and at that time there was a curtain between her and us.

Al-Bukhari Book 5, Hadith 4

This narration raises several questions:

1. Was the curtain see-through or not? If it was not see-through then the demonstration of Ghusl had no meaning.

2. Were the "companions" of Holy Prophet (s.a.w.a.) unaware of the method of Ghusl before Ayesha (l.a.)'s demonstration?
3. Would any woman who possesses a shred of self-respect emulate Ayesha (l.a.) and demonstrate the method of Ghusl to men?