Frankly there is no way to know what could happen. Having your children involved with others can pay real benefits. However, activities must be chosen carefully. Church groups with a trustworthy adult and the children sleeping in larger groups helps preserve the integrity.
Ultimately parents must pay careful attention to what is happening with their children to protect them from evil. Thus, it is important to keep the channels of communication open with your children so they can always feel free to express their hopes and even their problems. Children with problems are easily groomed for trouble.
Be watchful, teach your children the Bible, as well as how predators work. Young girls, especially, need to know how easily a man is stirred up. Boys also.
This problem is especially important when considering transgender issues. One book just out by a woman psychiatrist makes this claim:
My wish is for your child to reject the falsehoods from the get-go. If he or she is already on a “gender journey,” the goal is therapy that will facilitate him or her to love themselves as they are, without harming their bodies. I want to preserve your child’s health, sexual pleasure, and fertility. No child is born in the wrong body, their bodies are just fine; it’s their emotional life that needs attention and healing. In this book you’ll find the ammunition to protect your children while raising them in Trans Nation: information, parenting strategies, and hope. (P. xxxi)