10 and under:
Most likely die if you come in contact with them.11 years old:
Can be in danger so watch out.12 years old:
Still to young to be a proxy so you'll be kept under observation.13-18 years:
You will be constantly watched by Slenderman or other Creepypastas or proxys.they could try to train you and see your skills19+ of age
They will kill you as you are a nuisance to them.