Child free weddings are fabulous because no matter how well behaved YOUR kids are, or your FRIEND'S kids are, you can guarantee that some cousin on the distaff side will be doing liberal parenting and will have complete little shits who will not sit down, shut up and butt out of things that don't involve them, such as the ceremony.
Or will have a baby, but will decide that them seeing the wedding is more important than the bride and groom hearing their own wedding vows.
Or will allow their 3 year old to wander between/under tables putting dirty hands on everyone's party clothes because "Everyone loves little Jonny, he's so sociable" and asking for other people's pudding - and of course, you have to be polite to little Jonny but what you really want to do is spike his Ribena with tequila and leave him passed out under a table out of the goddamn stickily skirt clutching way.
Or will have brought their twelve year old, told her sha can drink as much as she likes, them disappears, leaving the twelve year old sat next to you on her own, plastered.
Or will plonk grubby looking babies onto your wedding finery while the 'nip to the bar to do shots loo!"
Or allow their 9 year old to precociously bend your ear on the subject of absolutely fucking everything because they consider themselves too 'grown up' to sod off and pop balloons like all the other overtired brats, but actually don't have the required maturity level to amuse themselves without adult input, so their parents allow them to join in EVERY conversation, no matter how inappropriate, because they don't want to take them someone that is appropriate./
Fucking nightmare. I don't want to take my own children let alone tolerate anyone else's and their appalling parenting choices (I mean, did Tabitha need to wear those hotpants? Yes, yes she does have a firm bottom to die for, but she's eleven....)
Child free is the way to do it. If you have children, as I do myslef, get a sitter or don't go.