Honest question: why? It's a huge expense for a short tram ride in an age most people have fairly decent data plans. I would prefer to have less travel companions loudly surfing TikTok...
Internet to go: Kostenlos surfen in der Tram | Luxemburger Wort
https://www.wort.lu/luxemburg/internet-to-go-kostenlos-surfen-in-der-tram/25729614.html
@bossito The only reason I can think of is tourists and other travellers that may not have a data plan (or have high roaming costs). But yeah, it seems something useful 20 years ago, not today.
@arroz the tram is already free like all public transport in Luxembourg, it's good to see that they keep investing in public transportation improvement but.. this one I pass, too pricy too little gain. Plus there is free wifi across town.