My paracetamol use is monitored by my GP and consultant. If I was running or popping out (impossible) to the shops, they would have no way of knowing how active my RA and pain levels were.
Combined with other pain relief, paracetamol can be very effective for people, like me, who suffer from chronic pain.
After my recent stay in hospital, due to the fact that paracetamol was on my repeat list, the clinicians dispensed it without any problems.
In the past I have had to justify my need for it, when in hospital.
It's not just about avoiding paying it myself, there are many reasons, why it is on prescription.