I'm a teacher, so I see lots if good byes. It really depends on the child. Some are still not happy to leave their mums when they are in grade one, some, not many, still cry in year 3. I refused to go on school camp in year 8 cause I would miss my mum too much! You probably still have a few years of cuddles yet. Enjoy them while they last.
Ps-just realised, those children were all girls. Haven't seen much separation anxiety in boys in year one or older.
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