dirtree package is built for producing diagrams like this. Below I give its default style and then show how to adjust the parameters to get something closer to your hand drawing.
The parameter changes that are made in the second example are as follows:
The style of the nodes is changed so that (a) we use a standard text font and (b) the node is shifted down relative to the horizontal lines
The standard lengths of
dirtree are adjusted, so that (a) the dots at the cross are the same wdith
0.4pt as the lines, this is the last two parameters and (b) the vertical lines are moved further under the nodes, the first parameter
1em. The second and third parameters have their standard value
The internal baseline skip of
dirtree is made larger, moving the lines apart and moving the tops of the vertial lines down, so they don't cover the shifted text.