Bulugh

I had stolen toys from two or three shops in my childhood. As a grown adult now is it obligatory for me to pay them back? If yes, can I pay them without letting them know the reason? Sayyed Mohammad Al-Musawi	I broke some fast of Ramadan in the early days of my Bulugh. I have already done the Qaza for them. Do I also need to give Fidya and Kaffara as well? Sayyed Mohammad Al-Musawi
What is the significance of Bulugh in Islam? Sayyed Mohammad Al-Musawi