In order to minimize your worries, educate your child about what he should do when faced with certain situations. Remind him not to talk to strangers as well as to take anything or go with them. If your child goes out on a school trip with his classmates, tell him not to separate from the group. It would also be beneficial if you ask him if he already knows what to do if he is lost or hurt. Make sure that your child always carries a whistle with him at all times. With a whistle, he would be able to catch the attention of anyone if ever he is in danger or lost. If he can already manage and if allowed in school, let him bring a mobile phone. This way, he can call you whenever he needs help or assistance. If your child is knowledgeable about how to handle day-to-day situations, you will surely ease up your worrying.