Plenty of lessons, for sure. Over Christmas, I walked my brother through setting up a HW wallet I got for him him, and then transferred .03 I'd set aside for him after he set it up.

I did not show him how to sell bitcoin (no doubt he could figure it out), but I'll eventually direct him somewhere like Strike once he's ready to DCA.

I also explained the reasoning behind why he should just hold onto it for at least 4-5 years, if not longer/forever. No guarantees, but I'm hopeful he'll HODL.