None of the Manchester Metrolink stops have lavatories, or the vehicles, and they travel over former rail routes to places like Oldham and Rochdale which used to be served by identical trains to what are being replaced in the valleys. Granted some of the termini on the SWM proposals, like Treherbert and Merthyr are over 20 miles from Cardiff whereas Rochdale is just under 15 miles from Manchester by Metrolink, but inner suburban trains around London, such as the 315s which run out of Liverpool Street, or for that matter the 313 units which run from Portsmouth to Brighton and Seaford along the south coast, lack toilets and many intermediate stations on the Coastway lack toilets as well.
So, again, why is this an issue in Cardiff but not in Greater Manchester where all public transport between large towns like Rochdale, Bury and Oldham into Manchester are toilet free? I'm sure there are proportionally just as many people in the Greater Manchester area with colitis, Crohns, diabetes and other hidden but debilitating lifestyle changing conditions that require careful planning for trips. Just like I have to living in a rural area where the local council has closed most public toilets when driving any distance. It's not always the case you can nip into a shop, petrol station or other public facility to use the loo in rural Wales as they just aren't there.
I understand where people are saying that in a civilised society toilet provision should be a basic right. I have diabetes and I have extra toilet needs which I have to plan carefully when making trips in a county which has largely closed all their public toilets and no, saying a loo is available in a shop or pub is not good enough, I don't want to have to go into a pub at all, just to have a pee. So I can sympathise with those with even more chronic conditions like Crohns or colitis who see their lives being ever more disrupted by the widespread (not confined to Wales) removal of public conveniences because they are a non-statutory function and a quick way of saving a few grand for local authorities who provide them. However, toilets are hardly ever provided on high frequency urban Metro type operations even when they travel some considerable distance, like the Metropolitan line in London. The provision of a high frequency fast congestion free Metro service that takes people into the city centre, with step free access, and aids for those with visual or hearing impairment, is going to transform accessibility for a far greater number of people than those who will be disadvantaged by a lack of on board toilet.
I'm sorry to have to say this but people really are lashing out at something which has already happened in other parts of the country without similar levels of press interest. It would be interesting to have some data (if it exists) as to the level of toilet use on the Valley Line trains, the number of trains where the only loo is locked out of use for repair, the level of damage or abuse of toilet facilities on the Valley network (I once saw a photo online of a couple clearly engaged in sexual activity in the toilet of a 143 who were completely oblivious to the fact the large frosted glass window didn't obscure what they were doing to those on the platform opposite at Cardiff Central) to see if the facilities are as vital as some seem to say.
Ultimately do people want a modern frequent turn up and go which accesses the city centre or a slower, less frequent service that sticks to the current station patterns, precludes any further extensions to areas not currently served by rail where alignments may need to run on street or fit into the existing built environment, but which are fitted with fully accessible toilets, with enough tank space to take a day's effluvia, or face having to be taken out of service for de-tanking frequently, increasing costs, fleet requirements and possibly introducing a new source of unreliability?