In theory, it's honestly not a terrible idea.
BUT, I would much rather see minimum wage increases across the board first. Not to mention putting a cap on both student loan interest AND tuition increases. As it stands, with federal student loan rates around 4.5%, college grads these days are under so much of a debt load that any extra money they get would probably be of better use paying off that debt, as opposed to investing in the market. Most of my loans were from 6% - 6.8%; you might not always clear that hurdle rate in the market, so any extra money I had just went towards paying those fuckers off. I DID contribute up to my employer match in my 401(k) while doing that, though. That match is quite literally free money, so you take advantage of that when it's offered.
They want to people gamble great. Trumps casino
Eh, in general, if you ever want to retire comfortably, you need to be investing, sooner rather than later. You don't have to go out and buy bitcoin or pork bellies...if you stick your money in index funds or target date retirement funds, over a couple of decades, you'll have a hell of a lot more than what you started with. Pensions are gradually going away. Firms now generally offer a 401(k) in place of a pension, so if at all possible, it's best to invest in that.