I'm from Alty neck of the woods and none of the Sunday Leagues here are any more (although to my knowledge the Alty Sunday League itself ceased, and only runs in summer).When I was in the north west I refereed predominantly the Cheshire League (reserve and lower division pre level 4) and that was always handshakes.
Mid cheshire Sunday league wasnt handshakes as I recall nor was the alty Sunday league.
Could only imagine trying to ask in the Liverpool leagues
I used to do some NW u21 as well and I just can't remember if we did or not on that one
NW U18 and U21 aren't, and Manchester League hasn't been for considerable time.