If I haven't misunderstood then European Parliament is just accepting the fact that cryptocurrencies have a future though they haven't made a decision regarding this. To come to a decision to legalize cryptos among all European countries, the members of the parliament need to step up. But, their seems to be a lot of possibilities for it to happen in the future.
I think that is just what the issue is. The parliament have probably observed that there are some benefits that will be derived from digital currency and that is the reason they are looking at adopting it.
Some of the reasons include that :
It will serve as alternative to fiat which will help financial transaction in this fast technological development.
It will also boost their economy because more money will be invested into it.
Apart from physical money coming as investment, tax will also be generated.