Challenge players with questions

Hey, this video is more aimed for the coaches out there!
I feel like we should always be actively challenging our players all the time in our tennis sessions and i feel like this is the easiest way to start!
Ask them lots of questions rather than giving them the instant answers and solutions, i feel like this enhances my players learning as they have to figure out themselves what they are potentially doing wrong or how they can do things better.
As coaches we feel a lot of pressure to give our players the answers straight away as it is our job to help them, and we know how! But is giving them the answer straight away the best way of learning?
In the short term i agree that it is, but long term, no. My players need to have an understanding of what is happening as i won't always be there to give them the answer! So, if I'm not there during a match, how will they know what to change if I'm not there to give them the answer!