No, not politics or religion - weight, yarn weight and pattern gauge.
Vent d'Antan, Epilobe and Sweet Peasy all call for a dk-weight yarn and gauge of 22 stitches to 10 centimetres.
Mini Manu calls for a dk-weight yarn and gauge of 24 stitches per 10 centimetres. Which is more of a sport-weight gauge.
Little Ancolie calls for a sport-weight yarn and gauge of 22 stitches per 10 centimetres. Which is what dk usually knits at.
As does Mi Avril.
Brock calls for a fingering-weight yarn and gauge of 25 stitches per 10
centimetres. Fingering usually knits at 28 to 32 stitches per 10
centimetres, sport weight at 25 stitches.
Then Leonie calls for a light fingering-weight yarn and gauge of 30 stitches per 10 centimetres.
I have enough Handmaiden Bess (above in blue), a sport-weight yarn, to knit Brock (calls for fingering weight) but not Mini Manu (calls for dk). I have six fingering-weight yarns that I could use for Leonie. But I don't think that any of those would work for Brock, which calls for them. I have dk yarn that I could use for Little Ancolie or Mi Avril, which calls for sport weight. I wouldn't use those for Mini Manu, which calls for them. The only yarn I have enough of to knit that is a sport weight.
And the question is - what shall I knit for miss bear and what yarn shall I use?