The fact is there are too many people.
www.bbc.co.uk/news/uk-wales-60405441
Wales' birth rate is at a 100-year low, below the European Union average and third out of the UK's four countries.
...
Wales birth rate has fallen even year since 2010.
In 2020 there were 19% fewer births than in 2011
The average number of children born to a woman (total fertiliy rate) has hit a record low of 1.47 - ower than England, N.Ireland and the EU average.
26.5 % of the Welsh population is aged 65 and over compared to 18.5% in 2011
...
Research shows Scotland's total fertility rate (TFR) is even lower than Wales', at 1.29.
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He said the consequences could include:
Falling pupil numbers making some schools unviable
Increased demand on the NHS and care services from the elderly coming at a time when the working-age population is not growing
A likely increase in the cost-per-person of maternity units, childcare and youth services, meaning families may have to travel further to access them
I can't image the squeeze on living costs is going to mean much change in the forseeable.
The UN projections for world population also show peak sooner and lower level than first feared.
People have acted here and are continuing to do so.