What I recommend is what this young doctor and father urges you to do:
1. Directly ask Mass attendees to wear masks while giving the reason that we need to make Mass attendance safe for those who cannot be vaccinated at this time (children). 
2. Ask priests and deacons celebrating Mass as well as those participating in the Mass to wear masks when not speaking to serve as an example for parishioners in attendance.
3. Continue to encourage vaccination for those eligible as you are doing.
4. Due to the growing risk for unvaccinated parents, children, in general families with small children are hereby dispensed from the Sunday Mass obligation until further notice.  As circumstances related to Covid protocols may vary from place to place, it is entirely at the discretion of parents as to whether or not they conclude that it is best to bring small children to Mass or to spend special prayer time with them at home on Sunday.
May God bless you and keep you safe!
+Edward J. Weisenburger