Expressing an Opinion-2 (revised)

I oppose that people meet strangers through online dating sites for some reasons. First, there are many criminals seeking the children, especially teenagers, to chat with them and plan to cheat their money. Chatting with the children for several days, these criminals will take the opportunity to ask them for money. In general, many people would forget their common sense and give them money. Second, some criminals will ask them out, and when  they know each other well they will rape or even murder them. Out of curiosity, the children may promise to go out with them. Eventually, they not only lost their money, but put no trust in anyone. Due to all of the two reasons, one must conclude that we can’t be too careful to meet people on the Internet.