title: react native what does nestedScrollEnabled do?
body: <p>This property available on the ScrollViewProps or components that derive props from it (SectionList, FlatList, VirtualizedList) is bugging me ever since I met the docs the first time.</p>
  
  <p>The description only says <code>Enables nested scrolling for Android API level 21+.</code> but does not give more insight on what is actually wrong on API 21+ (or on API &lt; 21 for that matter) or the actual use cases where you would need this property.</p>
  
  <p>I have done multiple tests on real android devices, and on all of them, nested scrolls (either with ScrollView or the other stock components) worked properly - with or without this prop set to true - and in both horizontal and vertical directions.</p>
  
  <p>So then, what does this prop actually do? Can you provide an example where this prop does anything useful or where the scroll does not work properly without it?</p>
  
  <p>Also, does it harm if I just set it to true no matter what for all of these scrolling components ?</p>