Most of my adult students have told me that they want to play the piano or keyboard for their own pleasure. Many have admitted that they would love to be able to play in front of friends and family at special occasions. Some have stated that they want to play at church or a senior center. But they don't want to take years to learn how to play their favorite songs.
If you've taken lessons as a child, no matter how long, you have the advantage of being able to read music, at least you have the rudiments out of the way. You may have forgotten much of it, but it's still in some brain cells tucked away in some dusty storage area in your head. You will be able to learn chord piano much easier than you think and you'll have a great time. And once you learn chords, you'll be able to embellish and "dress up" your songs based on the level you were able to play in the past.