My fiance and I made a droid last year in DL. We're both in our late 20's. We were both so excited and really really enjoyed the experience, and process of making the droid. We spent a lot of time picking out the specific one we wanted, and then we started calling it our "son" and bought extra personality chips. It was great reverse carrying it around in the backpack you can buy for it to go in, and the droid will interact with other things in galaxy's edge. I wish we could play with them in the land, but I understand why they said no. Overall we made great memories and was one of the most fun parts of the trip.
But, we've been locked in the house for over a year and we probably played with the thing twice since we got home. So something to think about. I wouldn't do it again, but I don't regret doing it because of the memories we made.