Haven't nurturing this idea of trading a Bitcoin in the near future,but one question that's always come as a concern to me is. Is proper for me to trust a friend of that high magnitude ?
No, never let a third party manage your assets because it will pose risks in the future. Trusting your friend to trade your assets means you also have to hand over your private key to him. This action is not recommended because you have indirectly given other people access to manage your wallet.
Everyone has their own life and different needs, you never know what their life will be like in the future, when they are in a difficult situation, maybe they will take some assets without your knowledge. Do everything independently, an investor certainly understands how to trade Bitcoin without having to ask for help from a third party.