Why to change anyone infact? Accept people as they are and if you really like to be with them, adjust yourself according to them. Changing someone would mean not accepting them the way they are.

Also, I kind of have stopped intervening in people's life to tell them if they are wrong, even if they are very close to me. Because people sometimes don't like that which leads to controversies. So I belive in live and let live completely now.

Have a great day!