Question: Must young children wait between eating meat and dairy?

Short Answer: Yes, a young child, possibly as young as two or three, should ideally wait at least an hour before eating dairy after meat, unless doing so would be unhealthy (i.e., the child needs a bottle).

Question: Is it permitted to purchase shares of a company that sells non-kosher food?

Short Answer: Many poskim permit purchasing shares in a company that sells non-kosher food, particularly where the purchaser has no active management in the affairs of the company. On the other hand, there are some poskim who are strict and prohibit.