How to say it without offending anyone!

When we started the website, Parent Child Education, I wrote the activities using "your child" instead of he/she and found it a little impersonal and odd to write "them" or "they".  So we decided to use he or she with every other unit but we would link to the following explanation:

He or She
In writing out the lessons we have found it hard to address your children as them or they
so we decided to alternate between he and she between lessons. We want to acknowledge
that either sex can and should be exposed to a variety of activities and although from here
on out the activities will be referring to one gender or the other, both genders are thought
of for all of the activities. 

We felt it was cumbersome to use he/she and impersonal to use they/them so we opted to switch the genders with every unit. I thought it sounded okay - upbeat but direct but I recently received an email from someone that I respected that she was taken back on the use of "he" in our winter unit. She asked me about our use of he in our text for the lessons and wondered why, especially since she has a daughter. Yikes!  

So Chantal and I decided to switch the genders with every other activity not every other unit.  Perhaps that will make it clearer that we do intend all the activities to be for any child - male or female. Let me know what  you think.