I am using a long line lead (10m) with my puppy while I work on his recall. I usually only use it in large empty fields where I am far away from others. I have recently starting going on group walks, and I've been encouraged to use a long line lead to let him play and run around with the other dogs. I find I spend the entire time worried about people tripping over the lead or getting tangled in it, and apologising on my puppy's behalf if they do get tangled up in it. My puppy has a lot of fun but I feel like it's antisocial to keep using a long line on these walks as it impacts others' enjoyment of the walk if they're constantly having to watch for the long lead trailing along the ground.
Does anyone else use a long line in group settings? Is it something other dog owners will just accommodate or am I committing a faux pas by using it?