What station is this that you can do it ? Yes I read what you said.
There is a new 16-17 saver railcard which will be on sale from 20 Aug which gives 50% of fares so a great deal for those within this age bracket. Tried posting the deal but not sure why it was taken down without explanation as it would be a better deal than the 16-25 railcard which only gives 1/3 off. Cut and paste information from the site: The 16-17 Saver will go on sale on 20 August 2019. It's valid across England, Wales and services into Scotland, but not on ScotRail or Caledonian Sleeper services. Holders of a 16-17 Saver will be able to buy discounted tickets for travel from 2 September 2019. Customers will be offered the 16-17 Saver as either a digital product on their phone or a physical card that will be posted to them. It's not possible to have both, this is in line with other discount products.
Did you not read what I just said? Lol. Yes it has a minimum fare, but not if you ask a real ticket guy with a machine they can do 26-30 discounted tickets before 10am.. Or you can just buy a 16-25 ticket on mobile or self service, they don't check or care
The 26-30 railcard still has the minimum fare before 1000am