If we are to move past our reliance on cars, then public transport needs to become a viable alternative, but in my experience this is become less of a reality.
In Cardiff at least, the bus service post COVID is simply pathetic. Unreliable, expensive, and full of incomplete routes. There used to be two park and rides, heavily used by commuters, but these have been closed. I used to have two viable options to get to work via public transport - using the park and ride which cost ~£2 a day and took 20-30min; or service bus which took roughly 45min. As mentioned the park and ride has shut, whilst the frequency of the service bus has halved, cost doubled, and it now also takes twice the time for the same journey due to poor traffic light sequencing at one junction, if the bus turns up at all that is!
Cycling is an option which I need to get better at by investing in good winter gear/lights, but it's my go to option in the warmer/dryer months. It's about a 7 mil commute each way. The half assed cycle lanes are more of a hindrance than a help though!
Otherwise, it is simply easier, cheaper, quicker and more reliable for me to commute via car on those cold, wet, winter days. It takes less than 30min. door to door, including a 10min. walk from a free on road parking space on the outskirts of the city centre.
Don't worry though, because Cardiff are building a tram system that will solve everything! Trouble is they've only just started on the first 3mile stretch between the city centre and bay. It'll be decades before I'll see the benefit of it, if ever. I'm all for it in theory, but they need to ensure public transport is of a high quality whilst we wait.
Don't get me started on trains, not that I have that option where I live!