I have a person I know who, as far as I can say, has been intermittently long interested in Buddhism, but never made a big leap in her practice to achieve and cultivate bigger achievements. She is sufficiently versed in basic buddhist teachings but, as this person told me more than once, is afraid of reaching a "point of no-return" - that is, to not be able to enjoy and do all the things she was used to once she crosses a certain stage of the path.
I tried to dispense some advices by offering details about my own experience and telling that, in reality, now I'm even more able to appreciate the same things I had before. This and a few other attempts never convinced that person (I never tried to persuade her, since I prefer that any person makes the choice that they most prefer) and my being aware that, to a certain extent, the progress in the path can be highly subjective, can only make things more difficult.
Not being able to offer a more satisfactory answer to Will I be able to enjoy life as much as I did before?, what convincing reply would you offer based on your personal experience and, if relevant, buddhist scriptures?
Please finally note that I do not demand that this, like many other persons, should follow the path to the fullest and most hardcore level. She may acquire a taste of what it is like practicing meditation, mindfulness and insight practices for a while and then settle at a level that she finds comfortable.