I don't think that many people want the mines back tbh. Easy to get and simple jobs maybe, but I don't know anyone who'd want the mines back. Anecdata I know. Wife's family is a mining family and I've lived and worked in South Wales for a while now.
Yeah I think it's less the mines themselves and more having guaranteed employment, and the camaraderie of working together in such a way. There aren't many professions that employ entire towns. You are right though, in that the attitude has changed - I think those who were alive at the time of the mine closures likely see it differently from those who have never known it. In that aspect it has changed since I first moved here, as that generation who grew up with the mines open has aged or passed away.
That sounds about right. My wifes side is a mining family and several of the men died young, not from accidents, but from lung issues so that potentially colours it a bit. On the tech side of things, I do see a lot of people who want 'better' jobs and there's often a lot of frustration in start-up folks I know that the Senydd just want call center or manufacturing jobs.
Yeah it's a bit of a shame that there's not more investment into tech startups here. Bristol seems to attract much more of that scene. Swansea seems to have more than Cardiff, possibly because it's slightly further from Bristol. I think there's pretty good support for starting your own small business here, but there's a bit of a gap after that which I imagine restricts the opportunities somewhat.