Also as a side note, let's talk of the (delivery) address.
In the EU, it is very probable that if you are registering for buying something on a "national" site (as an example a .de or a .it, particularly when the site is also only in German or Italian) you want the stuff sent to a national address.
The drop-down list almost invariably is alphabetically ordered, and contains all states in the world, i.e. it starts with Afghanistan, and often on mobile/touch these lists are not particularly easy to scroll.
It is a little thing, but still putting a pre-selected default for the state where you send like 99.999% of orders might smooth a little the attrition.
In the EU, it is very probable that if you are registering for buying something on a "national" site (as an example a .de or a .it, particularly when the site is also only in German or Italian) you want the stuff sent to a national address.
The drop-down list almost invariably is alphabetically ordered, and contains all states in the world, i.e. it starts with Afghanistan, and often on mobile/touch these lists are not particularly easy to scroll.
It is a little thing, but still putting a pre-selected default for the state where you send like 99.999% of orders might smooth a little the attrition.