Okay I am going to be super direct about this: If you want your family member to make games: you have to let him/her know you cannot start making those off-the-shelf games that are created by a talented teams of individuals. You have to start out making the really simple games that gives you a real solid fundamental of game development and programming.
My professor once said: a complicated problem is made up of simple problems.
If you start working out the simple problems which means to start programming the simple games, you are more likely to continue because you have a better sense of direction of your ability rather than get frustrated by a problem because you neglect learning simple knowledge.
Tell him or her that it is the real truth. If you want to learn, you have to start learning the basic level of things.
If he or she does not have prior programming experience, pick a programming language and start writing simple programs and start building up from there. It is not an over-night thing and if you have a passion for this stuff, you will be making games in no time.
Learn procedural programming and then learn object-oriented programming. Then start making games and ask him/her to join on this forum or any game development forum and ask specific question. I am sure he or she needs some support when facing some problems programming.
Anyone can make a game if he/she put a lot of time and effort into the project. I failed calculus III 2 times and I made my first game which is an space shooter game using just standard java library.