Soccer clubs in europe have their own ground because some play up to thirty games in winter, they like a very smooth pitch for top class soccer and dont even train on the field to protect it. Thats why man u and the like have maybe nine pitches in their training facility. Abd its why they are reluctant to share
We just dont have those issues
Yeah the "smooth pitch" is the reason why clubs have their own stadium. This is definitely not a reason and you'll find the vast majority of pitches in the top European league all are "smooth."
I think maximising revenue would be more of a reason mate.