Sounds like you haven't used Tcl since the early 1990's, you may want to check your facts. Tcl has had boolean, integer, floating point, list, dictionary, and

Sounds like you haven't used Tcl since the early 1990's, you may want to check your facts. Tcl has had boolean, integer, floating point, list, dictionary, and other data types besides strings since 1997. The fact that Tcl will convert all of these values into strings when asked is immensely useful. Likewise, Tcl has had object oriented extensions since the early 1990's, and as of the last few years has OO built into the core, so you can easily build your data structures to suit.