Regardless of bullies, your cousin needs to hit them gym once he reaches the proper age. Cardio, weights, plenty of protein and occasionally lots of fish and veggies. He doesn't have to train like a pro. He just has to be consistent with it and regular. In school, being good at a sport gives you popularity.. But popularity means shit in a school of retards. If he is lucky.. He ll have friends for life. If he is like me.. He won't even remember their faces in 10 years. Ao I am not sure if investing in sports is a good investment. But investing in physical fitness totally is. I am also not sure if it is worth investing in mixed martial arts and self defense. Bullying is bot about physical stuff always and confrontation is so rare.. You literally much rather pay then off rather than waste money in self defense. But let hin go ahead.. I dont want to be called a jew. But most importantly.. Why is he bullied? Is bullying even a bad thing? Is your cousin a complete retard? Maybe in the end ofbthe day.. All he needs to do.. Is stop acting retarded. Maybe there are valid reasons he is being bullied. But again.. If I d advise one thing. Hit. The. Gym.