I'm new to D&D and am interested in playing a monk character. From what limited research I have done, it appears to me that the monk is a mobile character who tries to avoid being hit and flits in and out of the range of their opponent, which brings with it the major concern of opportunity attacks.
There are two solutions to this issue that I am aware of: spending a ki point to Disengage as a bonus action, or taking the Mobile feat. However, both have issues.
Especially at lower levels, ki points are scarce and spending one on Disengaging as opposed to using Flurry of Blows would seriously hinder damage output. Furthermore, it can only be done a very limited amount of times, weakening the monk's mobility.
Taking the Mobile feat carries its own issues. Ability scores are very important to a monk since it relies on three different abilities (Dex, Wis, and Con), so taking the Mobile feat at 4th level will hurt the monk in the long run.
In short, is it better to take the Mobile feat or use ki to Disengage?
Furthermore, if it is better to take the Mobile feat, should it be taken with the variant human's free feat at 1st level, or at 4th level?