Should I buy a uniform before our first visit?

No. Visit first and talk with a troop leader before purchasing a uniform. Your son can attend a normal first meeting in comfortable everyday clothing, and the troop may have a donated shirt in his size.

What should my son wear for his first visit?

Comfortable, appropriate everyday clothing is fine for a first regular Thursday meeting. There is no need to purchase a Trail Life uniform before visiting unless a leader has given different instructions for a special activity.