SEPA instant started November 2017. I have 3 banks in 2 SEPA countries, none of them is participating. Not that I would need it, because SEPA transfers which are "free", mandatorily offered by every bank and take only 1 banking day. But there could be use cases for instantaneously.
Man the EU really needs to mandate compliance with SEPA Instant. Quite tragic that three years later and customers are still waiting on batch processes. FPS really is lush.
https://www.europeanpaymentscouncil.eu/what-we-do/sepa-insta...