Being born in Ireland is one way to be Irish I would have thought. Their parents not being allowed to work, not having a kitchen, living on a few quid a week, and the rest of the conditions of a miserable existence qualify as second class compared to the kids they are in school with.
I don’t think this matters to the kids going to national and secondary schools all over the country. Even the Dept of Justice accepts that most of those in this system are staying and those kids are Irish and will get their passports at 18. This system is a fast track method of creating a ghetto for immigrants and asylum seekers, totally counterproductive except for establishing a punitive regime to discourage others from coming. That’s the main reason why it has not been reformed.
Almost everyone pisses in the toilet that’s why you can check the toilet for population cocaine use.
You could probably measure the concentration of Creatinine in the water. It is excreted by all humans regardless of race or diet.
Creatinine is excreted at a relatively constant rate 14-26 mg per kg for Men and 11 - 20 mg per kg for women. If you knew the gender balance of your population in most cases that would be 50:50 then you could weigh the entire population that is pissing into the water by measuring the creatinine concentration. Knowing the average body weight of a citizen would allow you to know the population size with reasonable accuracy. The method could be validated and tested in institutions of known population and mass like prisons.
Both language and job opportunities I’d expect. Among the West African countries, the British colonies were Nigeria, Ghana, Sierra Leone, and Gambia.
They all retain English as their official language. Most of the rest of west Africa is francophone.