I think it boils down to more than what the parent wishes to teach.....
Our kids have grown up helping us to renovate. They have ripped out walls, ripped out kitchens and bathrooms, painted houses and helped with landscaping and just about everything we have done.
They are over it now. At 21, 18 and 14, the two older boys just are not interested any more.
I remember very well booking our first overseas holiday just over four years ago. We bought an IP which settled the day before we were to fly to the US and we wanted to get the bathroom ripped out, replaced, floors sanded and the whole house painted inside. We tried to get it all finished with the approval of the vendor before we settled, but ran out of time, so had to leave it empty for three weeks while we went on our holiday.
The thing that I most remember is that after all the help our boys had given us, they didn't want to do it any more. We had always paid them something, even when they were little, but as they got older and could actually do a fair job, we paid them quite well, so it is not like we were using "slave labour".
Hubby and I and my mother did the work, sweating up on trestles painting ceilings in the stinking hot December heat, knowing that my two teenage sons were sitting at home watching television in the air-conditioning.
They have said to us that they don't want to do renovations any more. It is not like it is something we did regularly, but probably once a year we would tackle something, and over the years they were happy to help.
They have learnt valuable skills from doing it, but that mad rush before the overseas holiday made me re-think a few things. They did reluctantly give us a hand, but I remember sending them home in disgust when I had to stop what I was doing to push them. They both had part time "clean" jobs and just were no longer prepared to be so "hands on".
We have to respect that, and in fact, I am feeling the same now, and have felt this for a while. I don't plan on being so "hands on" any more. I have enjoyed it in the past, but I plan to do less "dirty work" now that I am getting older.
I suppose my point is that this can backfire and you risk them losing interest.