€43 to drop someone off at Zaventem.

Belgian trains are getting ridiculously expensive. Today I bought a €7.3 train ticket from Ghent to Brussels Airport for both me and my girlfriend. On top of this you pay a €6.7 as airport supplement on every ticket to just enter the airport. Then after dropping her off I have to pay another €14 for my ticket home and of course the airport supplement to leave the airport by train. Why should anyone feel the need to take public transport these days when we have to pay fees to go through underground train tunnels when our taxes already go to building them?