At your age (or any age) protection is a good idea. When coaching race kids, if we are ripping around doing drills - esp GS training, I STRONGLY recommend the kids wear their protective equipment. This includes:
Their padded GS suit and padded training shorts. Padded top if they have one.
Race gloves (if you ain't draggin knuckles - sometimes - you ain't really turning)
And I strongly recommend a back protector (POC, Slytech etc)
Mouth guard will do more than a FIS bucket to avoid concussion. Fits in pocket and easy insurance. There is also some evidence a mouth guard helps with skeletal alignment.
As for old guys like me, if I am skiing recreationally and really ripping GS or SG skis down empty trails. I wear:
Braces (one soft one hard) for my creaky knees
Back protector (POC)
I often wear a neoprene wrap around my abdomen / lower back for warmth, support, and artificial core strength.
Mouth guard sometimes.
I sometimes wear an old school padded SL sweater when training gates with the kids.
Point is - pads/safety equipment does NO GOOD in the trunk of the car or floor of the closet. Got it? Wear it. Your safety equipment can often mean the difference between laughing off a spill and nursing a very sore whatever for a long time.