[r3un1]

It is true that there is a lot of diversity in local payment methods, but you can easily cover most of your potential customers by simply offering credit/debit card, bank transfer and paypal options. It's more than enough to get you started.

As for the supposed insane amount of regulation, the majority of international trade is regulated at the EU level so it's quite unified. Not to mention e-commerce which is completely regulated by the EU.

I am not saying that there is not a considerable amount of particularity that may be hindering small startups in fast expansion across Europe but I would find it quite hard to believe that it is much of a factor for the likes of Apple and Amazon.