If they have replaced heater hoses on a car, then they probably will have the confidence to replace a leaky bathroom faucet in their own homes someday. Instead of feeling helpless and panicky when the toilet paper shelves are empty, they will stay calm, trusting in their ability to come up with their own solutions if necessary; rags, shop towels, thimbleberry leaves, dad's old hankies...
Car "tinkering" does not have to start big. A child's first car project could be as simple as learning how to properly wash a car. It is easy to forget that a younger child may not even yet know how to connect a garden hose to a spigot. He/she will beam with pride once he/she has that knowledge and sees how nice the family vehicle looks after the grime is washed away. The adults involved in all this mentoring will have memories of good times spent with the kids that drown out insignificant memories of empty toilet paper shelves.

Thank you,
RockAuto.com