What is the difference between discussed to and discussed with?
'Discussed to' is incorrect. 'Discussed with' is correct.
'I discussed the matter with my brother and sister.'
There are many couples that have an age difference. Many people dislike an age difference between couples when the couples are young. Whether and age difference between a 17 year old and a 21 year old is right or wrong is an issue to be discussed with parents. At 17, you are not legally an adult yet.
Guidance and counseling are both processes used to solve life problems. The biggest difference between them is the approach as guidance includes listening to the client's problems and using ready made solutions. With counseling, problems are discussed and while relevant information is provided, the client becomes empowered to make decisions.