A 5-year-old boy is typically at a stage of early childhood development characterized by increased independence, curiosity, and social interaction. He may be learning to express himself verbally, develop friendships, and engage in imaginative play. At this age, boys often enjoy activities that involve physical movement, creativity, and exploration of their environment. They are also beginning to grasp basic concepts of numbers, letters, and shapes through play and structured learning.
100, when compared to 5 year old boys.
It depends on the size of the boy since all 5 year old boys grow at their own paces.
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NO
Most 15 year-old boys are fertile.
There are not many girls that dig or like 13 year old boys. They may like the boys as friends only.
they are appropriate for 9 year old boys
No, girls are intrinsically cooler than boys.
Yes, it should be hyphenated like so: sixteen-year-old boys.
Because Boys are mean.
That is not 'normal' in the sense that most 5-year-old boys don't do it. The problem is, "Where did this 5-year-old" see or hear about kissing penises?" He may try other things that could turn out to be more harmful.
A great time is anything 5 minutes or lower.