If this was recreational rugby, I'd have concerns. If it was top level competitive hockey, I'd have concerns. It's neither; it's recreational sport and it sounds like most people are cool with it.
Do you think I should be allowed to enter my 15 year old son in a local under 12 boys' hockey league?
If it's not rugby, and it's not top level competitive sport, it doesn't matter, right?
Hockey may not be rugby, but it's still a physical sport. They're not sitting on the field casually sipping tea.
I found a sports medicine page focusing on field hockey injuries. These are types of injury which are more likely to occur if there are strength mismatches between players, such as a ball being hit by a male player and colliding with a female player. If you look at this table of male advantage in sport, a field hockey technique is at the most extreme end of disparities!
WHAT ARE THE COMMON FIELD HOCKEY INJURIES?
Although field hockey is classified as a non-contact sport, acute injuries may result from contact with a stick, the ball, another player or the playing surface or goal cage.
The most common injuries in women's field hockey include:
Hand and wrist injuries
Because field hockey is played in a semi-crouched position with the right hand placed low on the stick, the hands and fingers are extremely vulnerable to injury from contact with the ball or an opponent's stick. Hand fractures, especially in the fingers are common.
Facial injuries
Accidental contact with a ball or an opponent's stick may result in injury to the face. While the majority of these injuries are minor cuts and bruises, more severe injuries such as facial fractures, penetrating eye injuries, and broken teeth have been reported.
Ankle injury
Ankle sprains are the most frequent injury in sports. Inversion-type ankle sprains have been estimated to comprise roughly 15 percent of all injuries sustained during field hockey participation.
Knee injury
Knee injuries, including anterior cruciate ligament (ACL ) tears, are very common, as are muscle strains, particularly of the quadriceps and hamstrings.
Concussion
Concussions represent approximately 7 percent of all injuries sustained during field hockey competitions. Dizziness and confusion are the most common symptoms of a concussion, although longer-term issues such as headache, fatigue, and difficulty concentrating may also occur.
Overuse injuries
While acute injuries are often more dramatic in nature, chronic injuries comprise a significant number of injuries. Chronic injuries such as low back pain, tendinitis of the hip, knee or ankle, and stress fractures of the leg and foot, typically result from repetitive activity and overuse. Learn more about overuse injuries.
www.urmc.rochester.edu/orthopaedics/sports-medicine/field-hockey-injuries.cfm