Yes.. because that Lord Ganesha has to be worshipped first in any rituals is a scriptural injunction and so it's universally followed by every Hindus irrespective of regions.
For example from Linga Purana, we find:
As the Bala Ganapati prostrated before his parents Shiva and Parvati,
the latter posted kisses on the son’s head and prescribed the do’s and
don’ts such as to create hidrances in the execution of Yagnas without
dakshinas, destroy serial Daityas and protect Brahma Vaadi Dwijas and
Siddhas; as also to those who perform Vedaadhyana, Adhyaapana and
Vkyakhyaana improperly; at the same time Ganesha shoud reward those
who perform worship daily, bestow prosperity to the virtuous and
protect the youth and elderly. By so doing Vighna Nayaka would be the
most sought after in Tri Lokas, told Ganesha by the parents. Shiva
emphasised to Ganesha that any Puja to him, Vishnu or Brahma or other
Devatas or Devis must be preceded by worhip to Ganesha first not only
to assure success of the main Puja but also supplement the fulfillment
of the desires for which the main puja was performed. The Prathama
Puja to Ganesha should be also done with
Dhyana-Avahana-Pushpa-Gandha-Dhupa-Deepa-Naivedyas just as the Main
Devata of the Puja was to be performed. This is relevant to all Varnas
of Brahmana-Kshatriya-Vaishya and others too. Thus any worship, or
Vrata, or Sacred and Religious Deed like Yagnas, Daanaas, Vivaahas,
Upanayanas, Vidyaarambhas, house constructions, or for that matter any
and every task seeking propitiousness shoud start with Ganesha Puja
in Hindu Dharma with the invocation to Vighneswara thus: ‘Shuklaambara
dharam Vishnum Shashi Varnam Chaturbhujam Prasanna Vadanam Dhyaayet
Sarva Vighnopashaantaye’!
Similarly the Varaha Purana states:
Lord Siva got annoyed by the instant reaction of Devi Parvati, became
jealous of the Super Boy and infact got angry and cursed him saying
that he would possess an elephant face, disproportionate belly and
serpented Yagnopaveeth (Holy Thread).Siva was still angry and from His
body hair roots kept on multiplying innumerable Vinayaks resembling
the original and Lord Brahma flew over the Sky and as Akashvani ( a
loud announcement from the Sky) declared that Devas should be grateful
to Lord Siva to have provided the solution to the problem posed by
them and that the various forms of Vinayak which got materialised
would indeed ensure that as and when Devas ( and human beings)
initiated a task they should invoke the blessings of Vinayak
foremost. As the announcement from Brahma was heard, Siva was by
then cooled down and addressed Vinayaka endearingly;
Ganesh Puja:
Vinayako Vighnakaro Gajasyo Ganesha naamaacha Bhavasya Putrah,
Yethecha Sarvam thava yanthu Bhruthya Vinayakayaah Kruura drishtah
Prachandah-Vucchushma daanaadi vuvruddhva dehaha Karyeshu siddhim
prati paadayanthah, Bhavaamsva Deveshu thadha makeshu kaaryashu
chanteshu Mahanubhavat-Agreshu Pujam Labhatenyatha cha
Vinashayishyastatha kaarya siddhim
Hey Putra! Vinayaka, Vighnakara, Gajavadana, Ganesha, Shankara Putra;
all these cruel-eyed, harsh and angry Vinayaks will be your servants;
those who are desirous of giving well earned materials as daanas or
alms be provided with Siddhis or boons. At Yajnas or various
Propitious Tasks, all the devotees shall provide you the highest
veneration, lest their tasks or worships be discounted.
Some more verses from the Katyayana Smriti's first chapter:
Gouri, Padma, S'achi, Medha, Savitri, Vijaya, Java, Devasena, Svadha,
Svaha, Dhriti, Pushti, Tushti with Atmadevata, these Matris are the
mothers of the Lokas. For performing a Vriddhi-rite (on the occasion
of a marriage, etc.,) these fourteen, added by Ganesha,. should be
adored, (12)
In all religious rites, the Matris with the leader ,of the Ganas (Ganes'a) should be adored with care. They, being adored, make [the
performer] worthy of adoration. (13)
So, Vedic rituals must begin with the adoration of Ganesha and that of the Matrikas. And every Hindus more or less follow these instructions be it in North or South or wherever.
(NOTE- The Katyayana Smriti is one among the 18 major Smritis of Hinduism.)
