https://en.wikipedia.org/wiki/Brightline
it's a tad expensive for a lot of people, and doesn't go as fast as it could because it uses existing lines but.. it's pretty good. it came about during the 08' recession, florida (gov Rick Scott) cancelled what was going to be a statewide rail line to save money. i remember nearly all the people i mentioned it too wished it had been kept. whoever the man/team/group that eventually founded brightline they fought an uphill battle but it helped most seniors in the state at the time could remember the US with trains and it had broad public interest, along with the backing of Disney.
it's still really hard to use only the train in FL. florida is very spaced out and a misery of heat during the summer. you can avoid the heat if you go from inside>car>inside, but trains lend themselves to walking.
having optionality is nice and i take it at least once month for the novelty and invite friends on to hopefully build awareness.
the us can build great things. we just need more builders to take their eyes off software and go back to public projects.