Join MN.
That's a rather unfriendly comment ☹️
My own children started swimming lessons at 5 as that was the age they could start at the time.
My grandchildren however have been going since they were babies but to the local authority classes.
Justamom no you are not being at all unreasonable in thinking that your mother-in-law is being extremely cheeky in saying she wants to take your son for swimming lessons but you've got to pay.
Like other people have said, it's not her decision to make.
Best wishes x
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