The only solution to people driving is viable alternatives to driving.

Under the previous Conservative government, half of UK bus routes ( ~8,000 ) were cancelled[1]. HS2 high speed train route phase 2 the extensions from Birmingham to Manchester and Leeds - which would move freight as well as people, freeing up space on local train lines for better passenger transport - was cancelled[2]. Phase 1 of it was due to be opened in 2026-2033 timeframe but was bungled now has no planned opening time, and Reform are calling to scrap that, too. Local council budgets were reduced[3] under the austerity measures, including one consequence of 40% less transport spending. The West Coast mainline was sold from VirginRail to Italy's TrenItalia in 2019[4] (Deutsche Bahn, French SNCF and Dutch Nederlandse Spoorwegen own most of the other UK railways) although this government is bringing Rail them back into public ownership.

And Reform are promising to remove bike lanes, and scrap Low Traffic Neighbourhoods to let cars use residental roads as through-roads again[5][6].

The UK doesn't have it as bad as the USA - but that's not for lack of trying to make car the only way to move.

[1] https://www.independent.co.uk/news/uk/politics/map-bus-route...

[2] https://www.railfuture.org.uk/article1904-HS2-Phase-2-cancel...

[3] https://ifs.org.uk/news/core-funding-english-councils-still-...

[4] https://www.forbes.com/sites/davekeating/2019/08/15/almost-a...

[5] https://road.cc/content/news/reform-council-conduct-review-s...

[6] https://www.thelondoneconomic.com/lifestyle/reform-councils-...

You have to be pretty remote to have no public transport in the UK.

True, though maybe that's covered by OP's "The practical details of implementing this are important...".

Then there's the fine detail of affording to live somewhere with public transport. :(