Always be extremely careful when showing something about bitcoins and high values to someone in person, there are a lot of bad people out there who are stealing, kidnapping and killing for money.
Teach him how to do it and explain the fundamentals, be his mentor if he is interested, but never show your values, always say that you have very little.
Now a days your good act can become a cause of hazardous situations for you and even people cannot show their own money to others because every other person is in struggle to steal your money by hurting you. If someone is willing of sharing knowledge of bitcoin then I think online method will be more suitable but if you show you balance too then it means that you are increasing your enemies in this world.
Now a days people are saying that they have no money even they have millions in their banks or crypto investment but the reason behind their lie is that they don't want to make enemies and they are not putting themselves into troublesome condition.