~snip~
So wanting to find how many bitcoin he held, was just for fun and motivation, that's all.
I have to admit that it's a bit of a strange way of motivation, because personally it would never occur to me to ask someone how much BTC or $ they have, and even less that it would motivate me to want to have more.
If you read the later part of that same line, I clearly stated that the recommended wallet is not particularly the best, but yeah, I agree with you, but also understand that a good mobile wallet is just as secure as the device it's installed on, I've being using mycelium wallet since 2018 or so, can't vividly remember, but it's been a very long time, I've never had any issues with it..
Everyone takes their own risks, and if you think you can safely store your BTC in a mobile wallet, then that is your personal matter.
And besides, the person I recommended the wallet to is not a newbie in crypto, he knows he way around crypto very well, and would go for a better more secure wallet like hardware wallets, if he feels the wallet I recommended is not secure enough..
That doesn't make sense to me, because it seemed to me that he was a complete beginner who doesn't know the difference between some wBTC and BTC, let alone know the difference between mobile and hardware wallets. The fact that you explain to him what Bitcoin actually is and advise which wallet to use definitely does not support what you claim.