This is like parents telling their children "If you have time to goof off and play games, you should have time to study harder / do the dishes / mow the lawn".

This is like parents telling their children "If you have time to goof off and play games, you should have time to study harder / do the dishes / mow the lawn". This isn't an either /or, also even if you stopped doing X completely, and did only Y, you still won't be done with Y. Because there is always more Y to do. So as long as Y isn't fully achievable, might as do some X also.