Keeping the tugs is not safe, and it is normal for them to leave when you enter a main navigation lane. At high speeds, tugboats can get capsized due to girding

Keeping the tugs is not safe, and it is normal for them to leave when you enter a main navigation lane. At high speeds, tugboats can get capsized due to girding. It kills mariners, and the practice should not be introduced because of a single extraordinary accident.