I hope this will be useful for those who still store bitcoins on the exchange, you should think about security and hold your coins on hardware wallets.
This is the best advice, it is never a good idea to store or leave our bitcoin investments on the exchange, Many of us who have been in this for a long time now had no body to advice us, we had to learn the hard way, anybody on this forum who is an OG would remember a cryptocurrency exchange called Cryptopia, I lost more than 85 percent of my bitcoin holding on that exchange when it was hacked, this exchange was my fav at the time, I used the exchange as a wallet, kept all my coins on this exchange which consist of bitcoin and some other major altcoins, I lost everything when the exchange was hacked .
I must admit you have a great uncle, and i hope you look out properly for him, also encourage him to join this forum as i believe there is alot to learn, and also learn from him, the gift of a hardware wallet is the best gift, i wish i had some one to give me such a gift .