Not all of the fields in Japan were as such just most of the locations where the clubs practiced and often played on weekends. My daughters never wore anything more than turf shoes, (visible in the pics,) no FG,SG or MG cleats for fiver years until arrival here. They definitely taught a lot of technical ball control to their youngers, our daughters were often at the practice field for 3-4 hours Saturday mornings just dribbling, juggling and possession. Coming back to the USA they were definitely playing-style culture-shocked but in a good way. They can dribble on their own for hours, not selfishly but competently. I think them playing on boys teams for their formative time with their coaches was beneficial as well.