Most people don't know what the word capital means. The gap is massive for real reasons not just access to trading platforms. The bottom 90% shouldn't have to give a shit. An electrician should be able to specialize in their field and trust that their retirement is taken care of by financial pdofessionals. Same as a financial professional should be able to trust an electrician to wire their house correctly for a fair price that will last 40+ years.
An electrician isn't, or shouldn't be, dependent on what so called "financial professionals" tell them. It isn't rocket science. Save a portion of your salary. Build up an emergency fund. Invest in passive index funds. Don't try to game the market. Don't get into debt. Don't assume someone will take care of you. This used to be common sense (save the index fund advice).
In fact, an prudent electrician is probably better of than a lot of students nowadays with worthless degrees and a mountain of student debt.