its actually pretty common for that time. Illegitimate children were VERY frowned upon at the time even today so his assumptions aren't really surprising. The wife, in situations like Lucia's, usually gets humiliated in high society for having married a man with a child from an unmarried woman, it's like sullying a marriage esp when women at the time were raised and hyped up to be pure, innocent lil thangs who's end goal was marriage and marriage being their meaning of life so seeing a kid that's not from you and your spouse :/ ... is the equivalent to a cultural, identity shock of some sort which is also ultra sad ://
But its sadder that he already has such thoughts, meaning he's very aware of his position and that's so sad, he's just a baby, an eight year old who should be having a childhood rn, and very undeserving of the terrible treatment of adults and peers just because of a birth he couldnt control :'''<
The poor kid I mean yh he shouldn't judge ppl he doesn't know but for him to think things like that would've happened to him, I rlly do wonder what he has been through