I think its the same with any trade but unfortuantly not everyone can jump on to an apprenticeship hence why these training sheds are popping up everywhere.
I have said many of times its not like the old days where apprenticeship's were everywhere.
I completely agree with your statement regarding experience is key and that's 100% true but these days you can send 100 emails out to companies offering even to work for free as a mate to gain experience yet you will be lucky to hear from 3 of them and them 3 will most likely ask if you have experience.
i think what i would do in OP situation is find a local 1 man band to assist on small jobs as he does his training
in my first 3 months i earned ÂŁ2 an hour, when i was accepted into apprenticeship i was on ÂŁ3.67 an hour, but this was relative to my skills and i was mainly an observer and carrier of things, an extra set of hands for the necessary but "crappy" jobs onsite
its like the military, a good teacher break you down to appreciate that even the smallest details matter, watch bad lads army, all of them complain about having to make their bed in a specific way, the officers come in and tip it all up and make them do it over till they get it right, early in my apprenticeship my boss would make me repeat jobs that i did not complete to an acceptable standard, now i have those good practices built in as almost a reflex, if i am not happy with something then i will make myself repeat it till it is acceptable, self discipline
at the end of their military career making the bed comes second nature to them, looking after your belongings becomes second nature, cant go to war without good boots, so better look after them
teaching old dogs new tricks can be done, but it will take marginally longer than teaching a young dog that has no built up habits already
older guys generally have families to support aswell, so living on an apprentice wage is not realistic