In defense of the younger kids nowadays IMO its not the fault of the younger people its merely a sign of the times.The thing is since newer cars are way more reliable in all facets than our older ever were there isn't the incentive for younger people to start working on their own cars any longer.The tires that used to last 20-30K back in the 60's-70's now last well over 50K even for cheap tires.They also come mud& snow rated so no yearly snow tire changes needed.Tune-ups that were needed yearly or every other year now are non existent because spark plugs last 100K or LONGER.There aren't any points to learn how to R&R,no wires to remove and forget where they go and no carb chokes that don't open on old cars that need a pen or pencil stuck in them to get the car to start.And then there's the 10 minute oil change places that do an LOF for around $40 or less with a coupon.
Even things in our homes aren't the same as when we were young.I remember bringing the tubes from the TV to the local TV repairman to check for us after my Father had removed them.He would check the 2 or 3 I brought to his store and sell us the one that failed and give us back the ones that passed.I never remember doing that and the TV not getting fixed so they were honest too.My Father showed us how to do plaster repairs and how to replace plumbing pieces.My Uncle came over and showed us how to seal the flat roof of our house.
There's simply nothing for them What I'm getting at is there are many things that are just made as replaceable or more reliable so younger kids no longer have the desire to learn these things when their are people being hired to do them instead of their Fathers.It's even worse for city kids who live in rented apartments or houses for them besides a car there isn't anything to fix or maintain.
Aside from many "city kids" not even having a father in the home, and therefore the boys growing up to become like their mom instead of having a dad around to emulate or follow after, (which is a whole different topic really) I don't share all of your views on this. When I was 7 years old and got my first bicycle, I adjusted the seat on it to my liking with the wrenches I found in the cheap pile of tools my dad had laying around while my dad was at work during the day. After that, I installed my own "sissy bar", generator powered head light, and other accessories that I talked my mom into buying for me from the Montgomery Ward catalog when I was 9 and 10 years old. I'm pretty sure many other boys in the 7-11 age group did similar things to their bicycles. That was how I became familiar with basic hand tools. Boys can still do that today if they wanted to. But most of them have parents who will do it for them, or just bring the bike to the shop to have them adjust the seat height.
Kids now sit in front of their PC or are glued to their cell phone playing video games. So if I was to agree with you, it would be due to the technology inside the home that boys are bombarded with, and showered with by their parents, which hinders them from ever learning how to use tools. I'm an aircraft mechanic for the past 4 decades, and in the work place I've trained 13 other guys in my department. But this last guy who is 34 yrs old didn't work out very well at all, and is the ONLY one out of the 13 who I've trained who doesn't know how to hold a hammer, nor a ratchet, nor can he comprehend how to even use a pin punch. He is the first out of 13 guys I've trained in the past 4 decades who I've had to instruct how to merely hold as well as use these simple basic tools, and even after I showed him several times, still doesn't get it.
He is just like the 29 year old guy who didn't know how to change a tire. These guys even love hi-perf modern cars, but have no interest at all in taking a wrench to them. Not even to change a tire nor to swap out mufflers when they want a more aggressive exhaust sound. They rather glue themselves all day long to their cell phone for social media participation and stock market obsessions, than pick up a wrench, or even watch videos on how to repair and/or modify cars. They've become a unisex generation in which the men are the same as women in almost every aspect. And to my knowledge, that's also what they're taught in school, that boys are the exact same as girls in every way except in their genetalia. It seems to be a lost generation, (or three)But I digress....