Exactly what I was thinking! I didn't want to say it though, because I didn't want to seem rude.... Why not just have a message warning users that they are on a cellular connection? That way people will know that MCPE will use data. Maybe you could do some kind of experiment to make an estimate as to how much data it will use, then put that data consumption rate in the message as well.

P.S. - Nice bear! <3

Please think about bringing back servers using cellular connection : add it as an option or something, I have unlimited data over 4G so it's very annoying we can't use it anymore :/

Thanks for your report! This is however a Duplicate of MCPE-8338 – If you have not, please use the search function in the future, to see if your bug has already been submitted, as currently over 47% of tickets are being closed as duplicate.

You'll see from the comments there:

This issue works as intended Multiplayer is now restricted to wifi only to prevent huge bills on metered networks. For more information see the change log for build 2

https://feedback.minecraft.net/knowledgebase/articles/907677-mcpe-android-beta-0-15-build-2