Yes and no ! Yes currants make sense for teleportation.
But no for the permanent one. Energy is easier to obtain, by nibbling piggy and eating meat, easting beans, or even a plank. It can also be obtained by meditating or considering an emblem. So even If I am dead broke I always have the option to tele atleast.
Maybe we can have access to a second teleportation point which costs 50, third which costs 100 currants and each additional teleportation can get more expensive.