Though it is correct we can not generalize weather matured couples like it to make being nude or younger ones always do it being nude.
Being said that i would like to add that it depends upon many factors like the time they have at hand, need , passion, urgency,
Means if a couple is matured then they just have to be cautious that their teen aged kids (even if sleeping in other room) should not get wake up and would bother them with obviously ackward questions. So they naturally would tend to get it over with rather than doing it getting nude completely and doing it with leisure and savor it. And most of the Indian women refrain from getting fully nude each time! They just think that its NOT nevessary at all!
Now compare above scenerio with the younger couple . First thing thay would not be in mood to 'come, lets get this over with!' attitude .They would be interested to know and explore the most intimate parts of each others and obviously would not be bothered about the kids (even if they happened to have one, they(kids) wont caste that obvious glance their way the kids in other case would.
This is one scenerio .You can imagine and understand the other scenes.
Most importantly however is as the couple grows older together that urgency, spontaneousness, passion , need obviously takes back seat.It obviously does not mean anyway that they do not love each other.Perhaps that is why it is called growing old together!
