think of your hardware wallet as your bank/safe where you store 99%+ of your money.
I agree with you, but it seems right with whales. For small crypto investors, for example, someone who have just 0.1
BTC, he or she does not need to separate small fund into pieces on phone and hardware wallet. In such case, it is always bad idea to store fund on phones, IMO.
I wish, but I'm definitely nowhere near being a "whale" but since I'm very security conscious
(or paranoid), I still separate my funds.
I don't know, but .1 BTC is still a significant amount. Around $1,100 in today's prices. I'd personally still separate the funds. In the end though, it really also depends on the owner. If you're a holder and you really don't spend your bitcoin, ever, then store everything on a paper/hardware wallet.