She needs to press the job centre to help her access training. Initially basic literacy and numeracy, and investigate whether there are learning difficulties or factors like dyslexia or ADD making things more difficult for her. This is where she might need your support and advocacy.
She can then look into training in skilled work that she can do in the long term even if it will be impractical/difficult to get employment until her child is old enough to get to school and back without her. I'd suggest a trade, something that will pay more than minimum wage and could be done more flexibly/self employed in the longer term.
If her people skills aren't great could she get training to do something like joinery, roofing, plumbing, bricklaying, car mechanics, scaffolding, fork lift driving, carpet laying, window fitting etc. Those things might be more suitable and better paid than care work, cleaning, cooking etc. Many of those jobs are done by young men who are lacking in social skills and academic qualifications there is no reason why a woman can't do them. Often they even transport staff to site.
She may need to organise some form of childcare when she is ready to start working, and she should start looking at this asap in terms of making the school aware of the demand, asking childminders whether there are any prospects of doing drop off/pick up in future, enquiring with other Mums in a similar position, getting on the waiting list for other schools with better wrap around care etc. She could also consider an informal agreement with another Mum?
She should also look into major employers in her area, factories etc. See what skills are in demand, what training is available, and whether they have any schemes for childcare/transport etc that might enable her to work normal hours.
If none of that is suitable could she find an evening babysitter so she could do evening shifts shelf filling at the supermarket or office cleaning or in a restaurant/pub kitchen?