Shouldn't the national high speed rail be at least as subsidized as private flight companies?

This particular flight I'm discussing it's more convenient. Getting to the high speed train station is tricky (there's no subway there!), you have to go to the closest one and then walk 10-15 min, which is just slightly faster but harder.

Let's see times:

• Train: 15 min to the station + 15 min early + 1.5h in the train + 15 min in destination = 2h15min

• Plane: 30 min to the station + 30 min early + 30 min flight + 30 min at destination = 2h

(this is domestic flying where you normally just walk in fairly straightforward)

You overestimate the speed of the train (30 minutes of flight = 3h by train) but underestimate the time it takes to fly.

I live in London and my closest train station is 10 minutes by foot, the closest airport is 1h by car or 2h by public transport. Also I tend to arrive 2h before departure, so flying burns at least 4h before even sitting in the plane and maybe as many hours when you land. It's a whole day affair. Domestic flights aren't any better. You save maybe 10 minutes not queueing for passport control.

Flight is terrible unless it's intercontinental. But most prefer the plane because it's vastly cheaper.

No, this is high speed train so it's shorter. My numbers were off both by 20min though, I searched harder numbers and the flight is 53 min while the train is 1h50min, but luckily that doesn't change my overall comparison.

You live in London as you said. That's a totally different experience from a local domestic smaller airport in Spain. Budgeting 30min for a domestic flight (no traffic, no check in, no passport, 2-3 min walk to any gate, literally just the security check) is enough, if you want to be extra careful sure plan to arrive 1h early, but every time I've regretted it since then I had 50 min to wait.