The root cause of much of this exclusion, however, has been simple thoughtlessness, ultimately robbing disabled people of access to public spaces and a sense of basic citizenship.
Fodd bynnag, gwraidd y rhan fwyaf o’r allgáu hwn yw esgeulustra, gan amddifadu pobl anabl rhag cael mynediad at fannau cyhoeddus ac ymdeimlad o ddinasyddiaeth sylfaenol.