I've gone without using my car for 21 months now though I've borrowed my sons car three times in that period, one was driving into London with my grandson for a rugby match that would cost us 5 times by public transport (it was 30 miles away), he's also not all that great in certain enclosed spaces so tubes are a real hit or miss affair and it was a weekday evening match too. The other two were a late night party some 17 miles away and one was collecting a bike to do up for a friend. I don't feel guilty at all over those trips.
Travelling Westward is an absolute bind, getting to a friend in Bucks is significantly more expensive by train and hugely more time consuming for what is a 36 mile journey, I don't want to cycle it as we go out for a couple of jars/food on the Sat and Sunday is for a nice ride out, the ride is feasible but some of it is just really unpleasant, narrow high speed roads which give a greater feeling of trepidation than cycling on a 70mph dual. I don't then want to follow up a 40+ mile ride with that as the return, a) because I'll already be a bit fagged and 2nd I don't want to spoil the day with what I know will be the usual crud. The route in itself is lovely but it's just spoilt by the fact you're having to share it with far too many @@@@@@@@s (I think that's the right amount of characters to spell buttock-orifices
I travel along the East coast line and have done so for quite a few years now with the bike, it's all just become too much of a hassle, it was cheaper but prices have risen quite a bit and you really do have to pick and choose to get the best price, I also like to on occasion drive cycle if you want to call it that, that is to drive to a location, set the car down and then spider out and/or go further afield and leave the car for a couple of nights at original digs. cycle touring is ace, maybe I should revisit it in its purist form but there are days when my condition simply lets me down and I'm totally frazzled before I've done anything, it's also difficult with food/tum so that's yet another thing that is ridiculously difficult and makes things just really ugly and depressing when it kicks off!
I thought about e-assist but there's nothing that can carry me, a normal bike + luggage that fits in with what I want (I've looked extensively) A Sinclair Iris that is elongated to fit stuff around the back might work. it would obviously take much longer than by car or train but if it was doable in 6-7 hours (av. moving speed 26-22mph) without caning myself then I could take that. I'm not really interested in an e-assist plus trailer tbh, it just doesn't appeal.