well, (this is my opinion, and probably mine alone) i always tell people that its easier to learn on electric guitars, because they are usually smaller bodied that acoustics or classicals and the necks are longer. also the body of electric guitars allow upper fret access.
but if you think a classical guitar would be right for you, check around music shops or online stores based in your country/continent/state.
in addition, half and quater sized guitars are usually for small kids starting out playing at a young age, when their hands cant grasp a full sized guitar neck.
hope this helps
Guitars: Ibanez RG420EG, Harrier Mistral Ice White Tele
Amps: Hughes & Kettner Edition Blue 15R (w/ 8" Celestion), Marshall Valvestate Mk.I 8100 Head, Blackheart BH5H Head
Cabs: Marshall 4x12 (4 x Celestion Pro 12")
FX:Line 6 Floor POD, BOSS 7-band GE-7, BOSS Mega Distortion MD-2, Vox V847a Reissue Wah, Danelectro Cool Cat Drive
Just another Rig Sig Jig, Dig?