It’s a good point that for other racquet sports, any audience (formal or informal) needs to be far away to watch the game. There isn’t so much interaction. But you can turn up to a local padel club and watch people digging out víboras a foot away from you, almost as if you were on the court yourself - playing epic rallies, making jokes, getting into it. For sure that has boosted the sport, because if I hadn’t walked past people playing in Spain I wouldn’t have given it a go myself