"Kids these days" might be some kind of comparison among generations but I sometimes agree on this line, with the limitation of not being insensitive. I agree on the part kids are not developing their problem-solving skills nowadays, getting frustrated easily to little inconvenience, and then shut down for they know nothing as to how to figure it out. I have a niece of 3 and she would do a lot of cries when the kids show she watches get lag, and then get frustrated, not telling us the problem, shutting her mind and mouth. I guess phones really does this, aside from parenting, it decreases attention while it makes their work easier but doesn't teach them logic. If the kid is within five years, it could be their parent's fault or the gadget, but if they reach more than that age, it could be still their parents, the upbringing they had, or their social environment. Better have healthy parenting before it is too late to help a child navigate the real world without knowledge.
It's definitely the parents because I know some kids who handle problems quite well. The issue is it seems to be a sort of trickle down effect so it will likely just compound as generations pass.