>>54221994In Johto/Kanto/Hoenn/Sinnoh, it's accepted as traditional based on text found in Sinnoh legends. As it's all the same geographical region, these views are likely similar.
In Unova, they forbid it entirely after N/Team Plasma, and likely look down on anything that isn't heterosexual marriage for the purposes of procreation. Too much affection towards a Pokemon are rigorously investigated by law enforcement. There are always reports of trainers being seduced by Illusioned Zoroarks.
In Kalos, Beauties are filmed in seedy basements getting rutted by Furfrous and Male Delphoxes for Gentlemen to smoke pipes to.
In Galar, one can often find young males "practicing" on their Wooloos. Females practice with Boltunds but it's viewed as degenerate.
In Paldea, it is common practice for truly vile offenders to be put in stockades while Oinkolognes degrade them.