I believe that since February 1st (so 4 days ago) you can also use contactless debit and credit cards for train travel throughout the entirety of the Netherlands. I think that most if not all regional public transport providers, for say bus/tram/metro, already support it as well.

Can't use it when you have a subscription though, so a lot of people here will still be using their plastic public transport cards for personal and work travels, including me, but it's nice to have the possibility at least.

https://ovpay.nl/en