Originally Posted by Calchas

Many airlines no longer accept paper tickets (e.g., BA). Let alone hand written paper tickets!!

The only reason for paper tickets is that it defeats the restriction that you can only have four electronic tickets in a single electronic ticket booklet. Therefore paper conjunction tickets can have more than sixteen sectors. (A ticket can only hold four sectors including surface sectors, and there is only enough space in the conjunction ticket space to write out three other conjoined tickets)