It's still around, I used it in 2016 aged 32. I've not heard of any age requirem...

		ben_w 9 months ago \| parent \| context \| favorite \| on: Where can you go in Europe by train in 8h? It's still around, I used it in 2016 aged 32. I've not heard of any age requirements. https://www.interrail.eu/en

There is a cheaper ticket for 12-27.