What was your point?  To lecture?  If I have a ledger nano s and a trezor, then seems like I would have a sufficient quantity of coins there, too, no?  Maybe I have some coins and other value on exchanges for trading?  How is a guy going to trade coins if he does not put some coins (and/or value) on exchanges...   You have no idea regarding my exposure and you are assuming and giving unsolicited advice.. was that your point? 

If your point was to share information about possible places to keep coins, then that was helpful.. but going on an unsolicited lecture still seems quite presumptuous to me and you do seem to be assuming facts that are not in evidence.  no?