I am sorry we made you feel sad. The difference between you and my Mother is the last sentence of your post. Your children have told you what they want, and you listened.
My mother once bought a broken-down play set. A HUGE wooden one, that had a large attached tree house with a spiral staircase up, monkey bars, sandpit, slide and swings. She had a local farmer deliver it while I was at work as a 'surprise'. When it was new I bet it was a thing of beauty.....
....... but It was a health and safety hazard as it was terribly weather damaged, paint peeling, the metal fixtures had rusted away the wood had rotted through in most places. A large part of it collapsed while the farmer moved it in.
I don't have kids. I am staunchly and always have been childfree by choice.
I don't even have neighbours that have kids and the thing was massive took up 90 percent of my garden (and stank of wet rotting wood)!
She had decided it was a great 'do it up' project for me to get into and I could sell it for a profit. She didn't talk to me for nearly half a year when I said I didn't ask for it, need it or have any inclination (or the tools) to get into woodworking!
In the end, it cost me £170 to have it removed, £170 I didn't have at the time. I cried for a week while I tried to sort the whole thing out.
The list of other things big things that actually cost me money
A very unwanted banged-up Nissan Cherry (I was 22, a student who could not afford to run a car, had no inclination to drive and couldn't afford lessons)
The most ugly blue-mottled velour sofa you have ever seen, which has a mouse nest in it 'but it was a bargain The house had to be sprayed as we were all getting bitten by some sort of bugs after it arrived.
Told a neighbour it would be ok to stay at our house as we live near an airport - we were actually abroad and they broke the latch/handle/frame of the front door trying to get in. (and got in a very bad-tempered argument with us that we should cover their airport hotel cost that went on for months)
Luckily we have now moved away so unexpected removal vans turning up at the door is a thing of the past. Or people dropping things on the driveway as my Mother has told them I would 'love it' and they can' just drop it off' there.