https://www.irishtimes.com/news/number-of-pubs-down-by-1-300-over-last-five-years-1.1081600

I did say spontaneous for sessions.

If the venues have shrunk then inevitably so have the performances.
Total number of pubs in Ireland ♎ 7000
Number closed 1300 in last five years

In my own village of four pubs 2 are closed, the other 2 limping.
20 years ago they were all vibrant with plenty of music and you would not know who might start playing. Today maybe the occasional Saturday has some music with a little more during the tourist season. There are some sessions about, but in nearby towns.