I'll ask you also. Did you make decisions for your children before they reached the age of reason?
#1...Reason is not Lord of my house; our Lord is.
#2...There is NO automated "age of reason" for kids. That is an arbitrary standard that is unBiblical and reason will not only vary from kid to kid, but upon which subject and which emotion is being entertained at the given moment.
Kids can be "reasonable" about plenty and "unreasonable" about plenty...and I've seen enough pre-teen, teen-age, and adult UNreasonable "drama" in certain situations to make me question that so-called threshold you entertain.
#3...Your line of thinking militates verses what I expounded in the first chart in Post #143 -- about who Jesus says belongs the Kingdom of heaven...and it's even younger than "little children" in Luke 18...Luke specifically cites "infants" there as the full context for all that follows.
#4...Please read Post #145...because the Biblical score is...
...Entire household baptisms 5...
...Age of reason baptisms 0...