I gave him a straight no for that explaining the volatility and the unpredictable movement of Bitcoin. How can you payback the money if BTC's price was crashing down and not recovering for a long while.
If you don't have money but wanted to get in to BTC, much better earn it from side gigs or jobs and just put an amount that you can afford to lose.
Maybe if he listened to your as a speaker he wouldn't think like that. I think that he might considered you as rich since you are knowledgeable enough to teach people, but regardless of the financial status, borrowing money would never be a good option to invest in Bitcoin. This might be applicable to people who have enough salary that could provide their needs, as well payment to their loan. Still it's the risk that were concern since Bitcoin is unpredictable that could worsen someone's life. Explore more the internet or out of your comfort zone, for sure there's a lot of side jobs that people could take to earn for investment