It would help distinguish between levels of elections  The number of different elections can be confusing; almost everyone has three, European, National, and local, and some have others added in such as Mayoral, or regional elections. As such there is much to be gained from helping to differentiate elections by not being concerned about being allowed to vote for them all at the same age. Having elections for the European Parliament at the age of 16 would clearly distinguish the elections from all the other elections within the country (with the exception of Austria). For the European Union this would be an opportunity to show that it cares for the youth vote and has their issues at heart as it is a chance to get teenagers involved in Europe before they can be involved in their own national elections. For the teenagers it provides a chance to engage with one election, and one electoral system, before all the others helping to keep things simple.