Why gambling ? Is it that he wants the money through a fast means ? I will not go into such deal with him,I will only advice him to invest his money in bitcoin,if he is patient enough to invest in a long term bitcoin hodi,he might make more than 65k when bitcoin hits the bull market.
They are unlikely to have a feeling of disappointment about this because they can feel their own pleasure and satisfaction from betting and gambling.
It's not a matter of getting money in a nutshell, but it's become their habit.
As it would be very difficult to be able to advise a gambling enthusiast to stop betting and playing.
What's more, it suggests investing in bitcoin, whereas a gambler has greed and greed and is impatient because basically investing is a decision made by someone to save their money with the aim of getting profits in the future and it takes quite a long time. also.
I'm not sure I can do it myself.