In my neighborhood we are blessed with several families with kids. My summer hobby area is the garage, spray booth, compressor and such, kids hear the compressor running and show up to watch.
I have taught dozens of them to build models over the years, giving them models, tools, cement, etc. When they get to the point that they can just do it at home, then they come by to show me their work. When the models are ready for paint, they come here and I teach them about masking/airbrushing.
I give them nearly all of my finished work, some go to aviation museums that I developed a relationship with years ago. I build "two footers" for them, they are kept in cases so they should last for quite some time.
My finished ones are out of my hands as soon as completed, the majority are gifts to neighbor kids, once in a while one will come back here for repairs. Some of their parents have said they appreciate that the kids learned the hobby, it gives them another activity for occupying their time especially during our wet winter months.
But I have to agree, eventually they all will be disposed of at some point, not many folks have the interest in models that we are so fond of. So I think the sentiment to simply enjoy it as something we do for our own pleasure is correct.
Patrick