Touching any women beside your mahram is something worse than getting stabbed by iron needle. It’s a saying of the Prophet ﷺ.
The Prophet ﷺ says,
لأَنْ يُطْعَنَ فِي رَأْسِ رَجُلٍ بِمِخْيَطٍ مِنْ حَدِيدٍ خَيْرٌ لَهُ مِنْ أَنْ يَمَسَّ امْرَأَةً لا تَحِلُّ لَهُ
“If someone stabs a person with iron needle in the head, that would be better for him. Than this person touches a woman who is not permissible for him”.[at-Tabaraani from Ma’qil ibn Yasaar. Al-Albani in Saheeh al-Jaami’ says this hadith is sahih].
And, the mahram women are your wife, your daughter, your granddaughter. Also your mother, your grandmother, your sister, your aunt and your daughter-in-law. Beside of them, you can’t touch them.
You know, this is how Islam maintain the honor of men and women.