If you need to be forced, you will either

1) be scared of therapy itself at that time for whatever reason (symptoms may worsen as a result, as control is taken away, and combined with potential mistrust of counsellor with feelings of entrapment).
2) you will think you do not need it and most likely just so 'yes' and 'no' in the right places and get the hell out of there, mumbling something 'about treehugging hippies' on your way out the door.
3) not be in need of counselling at that time.

More seriously, couselling for some after 7/7 attacks in London was forced...shoddy counselling in which they were forced to relive and explain what happened over a few days before being left to continue alone (counselling recieved, box ticked, government placated) is estimated to have led to worsened symptoms or having created them in the first place in some victims.