It should be difficult for the parent, so they are motivated to work with child and school to ensure it doesn’t happen again.
Because it's only children of unmotivated parents who aren't already working with the school and myriad other agencies who behave in ways that lead to exclusions
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Making things difficult for parents, especially with an attitude that you are trying to punish them by doing so, is not conducive to developing good working relationships and certainly does nothing to increase mutual respect. Taking satisfaction from the fact that an exclusion is difficult for parents is ridiculous. The vast majority of parents whose children have been handed an exclusion are already very, very motivated to work towards a change in their child's behaviour, as they have been dealing with that child for years and will be doing so for the rest of their life. To take such a snide, unkind "obviously you have done nothing to try and help your child's behaviour so far and now that we have added the inconvenience of dealing with an exclusion to your life you will finally be motivated to take action" attitude to this is pathetic.
My ds was excluded this term. I would have only contempt for anyone who thought it was a good thing that yet another stressor was added to my life by it, and that until the exclusion I had been merrily skipping along ignoring all problems but now would change my ways and magically fix things. I have been trying to get him the help he needs for over 5 years, I had visited, emailed, written to, phoned the school to try and get plans in place before the situation which led to the exclusion arose. I got him seen by CAMHS when his previous school failed to get an Ed Psych assessment as promised. I deal with his aggression and lying and violence and stealing and impulsivity and risky behaviours and meltdowns, every day, for hours at a time. I bear the bruises. I make the appointments, I drag him to them. I manage the meds. I chase the reports and plead for the referrals and beg for the meetings. I deal with being verbally abused and threatened. I protect my other dc from the threats and aggression. I put my house back together over and over when he destroys things over and over. I enforce the bloody homework, and have to manage the consequences of that: one piece of homework means hours of difficulty for me. I back the school's decisions even when I disagree. It's me that has to take him shopping and suffer the public humiliation when he decides that he does not want to wear what the uniform policy states he must wear, and that he will communicate that to me with a full blown public tantrum.
I do not get to exclude my son, to give myself a break from him. I do it day in, day out, permanently. If I got even the faintest hint of that "perhaps now you have been inconvenienced you will make things better" message from any member of staff at my school I would be utterly furious. How dare any smug idiot who has no idea of what my life is like and how hard I work to keep things together judge me in that way?