[Evans, Marv]

While helping him out and maybe getting more involved in his life might be a nice idea, I think lots of us here know how that kind of thing can sometimes not turn out so good. I would keep tabs on him and help out as much as you feel is constructive for him without him feeling like he can become dependent on you. I say this because of your comment about how he has made poor choices in the past. I think you can have the kids thank him for the gifts, and later on mention to him how they appreciated his generosity but also tell him they thought he maybe did too much and they would be just as happy with something much smaller in the future. Let him know it's the gesture of giving that counts to the kids, especially since they are already adults.