>>34489344He does care for his son. The way he speaks may come of strict parent, but it could be because he deep down misses his son. He was away for two years, his parents didn’t know where might be hiding. True, the little dialogue he has in the game leaves with tiny picture of what he could be like and I wish there was more, but that may get more screen time in manga. Or anime, who knows.
Even having the greatest parents doesn’t always guarantee that their kid will stay on the right track. Guzma probably went trough the roughest part of puberty at the time and for a young naive and impulsive man he simply didn’t not see any other way out than run away. Even Hala had given up teaching him because he refused admit other people’s strenght and and learn from others, instead of thinking them as opponents to be smashed. His father tried to reason with him and as a last resort battled with him, but lost and Guzma used that opportunity to get away. Though I did chuckle of the idea of his father describing his son waltzing back home. And they probably settled down their differences with another Pokemon battle, which is father lost. In which he comments how kids grow up fast and that his son grow up to be huge. He may even be proud of him without being direct, because parents do tell their kids that they are proud when they tell them that they are all grown up.
I don’t have much opinion about his mother because she serves as sidewatcher for her whole screen time and is denying that his son hasn’t done anything wrong. Then again, it’s kids NPC’s that have most negative opinions about TS, when adult NPCs regard them more as nuisance than a threat. Even the berry farm grandpa didn’t want the protag to help him because they were just that dumb and immature.