Even we should not interfere with others for changing their schedules as per our advice making others puzzled and confused of their priorities.
Actually some people have a habit of suggesting or giving advices without asking and they must first ponder over the situation of the other person before making any such suggestion especially when the other person has not asked for it. These things are also considered as against etiquette and good manners.
Knowledge is power.
Some people will come to start giving their suggestions. At such times we will get irritated with such people. Some people will have a very casual approach towards and without thinking much about the issue start giving their own opinions. We should not encourage such people and we should tell them their limitations. In certain cases, we may not say anything when somebody is offering suggestions. Even in such incidents also we can hear what they are telling but we need not implement them if we feel that their suggestion is not very useful. Suggestions giving is very easy but if something wrong happens no one come for our rescue.
But I live in a country wherein in accordance with our culture we have to respect our relatives and extended family who often are the most interfering ones in our lives giving unrequited advice and asking questions without any sort of logic and reason.
"It is hardest thing in the world to be good thinker without being a good self examiner"