Kids invited to the wedding? Yes or No?

As anything else, this is another personal decision to be discussed by the couple.
I believe there is not right or wrong answer. Each couple will have their circumstances, preferences and little humans or not to celebrate with.

If the answer is "YES, we want them in both our ceremony and reception",
​ then it is quite easy: just include them on the invitation.
"The Smith Family"
or name each person:
"Marina, Adam, Charles and Sue"

If the answer is "NO, we rather this to be an adult celebration", below you will find some polite ways to word your wishes.

How do I kindly request NO kids to my wedding?

There are many people who want to exclude children from their wedding receptions but lack the words to do so or they may feel worried to offend their guests, or that their guests can not make it. With this in mind, let us consider some of the ways you can say "no to children" on the invitation without sounding rude.

Subtle Ideas on how to word your invitations
There are many reasons why you may not want children at your wedding. Starting from the obvious, not all children and nice and quiet. Other times you may want to bring the cost down. Perhaps your venue may not allow children. 
Or you may be celebrating your wedding with an experience or in a place that is not suitable for children. Nowadays, people are getting married in a variety of places or exotic locations. They are going to canyons, ice lands and jungles. Some environments are unsuitable for children. Other times, the venues will just not allow children. You can go ahead and include this in the invitation. After mentioning the location, or venue policy, you can say 

​‘ Adult reception to follow at’

‘ Due to venue space or policy restrictions, we are unable to invite
children under 16’

‘ Due to space restrictions, we can only accommodate
children of immediate family"

‘ We love our little ones, however,
this is an adult only reception and ceremony"

•A subtle way is to address clearly the invitation and the envelope
with the name of the persons invited. In theory,
if the kids' names are not there, your guests should understand their child/ children is/are not invited or they should give you a call and ask.

Grown ups want to have some fun too sometimes. Your wedding can offer the opportunity for you and your friends to get loose without worrying about the kids. If possible, you can forego the cost of setting up a baby sitting area. You can write on the invitation, 

‘ We thought you would like one night off, please let's make this an adult only reception. A professional nanny will be booked at the venue "

‘ Due to budget limitations, we are unable to accommodate children, professional babysitting will be provided at the hotel/ venue"

​Speak to your guests, converse with them before hand, lay out your concerns.