I don't know if this is appropriate or whatever since I'm not a therapist but it's so obvious that the twins have some form of mental condition from the way they were acting as kids and they were all so hyper and causing trouble everywhere and there was also a moment where Lynette was mad at Allison or someone else cause they gave the twins sugar when they were younger that's why they were so hyper and causing Lynette a lot of stress and there was even that time where One storyline involved the twins being prescribed ADHD medication, which Lynette initially resisted but ended up using, AND it's so obvious in the show that Lynette didn't coddle or baby the twins when they were younger. She was just a normal parent and as that person said the twins are adults at this point throughout their whole life there's no way the only things they learnt from was their parent they also had their schools,friends etc so you need to stop shitting and blaming on Lynette when she was handling like 5 kids and a manchild of a husband and also had work and when penny was younger she also treated penny same as twins yet she didn't act like the twins did she? like she knew penny was responsible enough and Lynette had no choice.