Don't you think that its better for you to teach him the things he needs to know than someone who may not share the same respect for the sport. Take him to your hard earned hot spots. But, explain what makes them hot. Once he understands, help him find his own. As far as being alone, spend some time with him and when you are comfortable leaving him and going to another location he may enjoy the alone time also.

Some quality time spent with your brother will produce a quality hunter.

Good Luck!