I dont know why some people in the thread talk about a fixed ammount per month to make the DCA , man put whatever you can, its not the same the ammount who can purchase a guy from USA with a much more income than a guy in Malasia earning 30 usd at week.
The key factor its making something and having a save on BTC.
About fees, dont overthink it too much when you reach X ammount and the fee are below 2% go ahead and make the withdraw.
Investing the same amount of money at the same interval makes a good habit of investment. It is not about the amount and no one will punish you if you invest more. It is necessary to create a habit of investment which is very important for an investor who wants to DCA for a very long time.
I think the main problem with DCA is the fees. If you have been doing DCA for over 3 years and you have made more than 100 transactions already then you know the total amount of fees you have paid is not tiny. An investor who can only invest 50$ a month needs to consider every bit of dust he can save for himself. The goal is to fill your bucket as much as you can without losing much of it.
I agree because once a habit is developed it doesn't become any problem for you to actually stalk up your bitcoin because believe me saving money isn't that easy as many folks are actually claiming it to be because if you don't have it as an habit then procrastination because your era of the day and once you start doing that saving bitcoin or money seem to be very difficult.
If am doing DCA I don't think reflecting on the fees in which you have inquired over the year for transaction when saving your bitcoin would actually be a good idea because sometimes finding out details about things can actually discourage you.