Almond milk would be a safer choice of a milk if you plan to drink it with the tea. (nutritionfacts.org)
To get similar consistency with out coconut milk you can put in a half an avocado with a different choice of milk (and no you can not taste the avo):) (earthyandy.com)
The MINTEL Baby food and drink report from April 2016 notes that one of the main factors determining parental choice of milk is «brand». (babymilkaction.org)