You have asked many questions at once which are difficult for a common man to answer. First of all if in my country if investing in bitcoin is not allowed then i nvest in Bitcoin and will not feel fear of going to jail so we love Bitcoin so much and this future. If I have DCA in Bitcoin or want to DC and a friend comes to me for financial need then I will definitely help him by managing my DCA because a person who helps others is successful in the life
Helping friends is a good thing but it is important to remember that the help should always be done with sincerity and good heart. Any help is devalued if it is done for personal gain or show off. True success comes to people who care for others without personal gain.
And when it comes to good investments you will always like those investments that you have made a profit from and in which you have more experience.