Assalamu alaykum. It is happening in our city. The schools of secular education (managed by islamic institutions) are offering a scientifically designed deeniyath class (an extra hour). So this extra hour for almost 12 years can help the child to learn about deen. There are a few pious muslims who withdraw their children from the secular schools and put them in madrasah for 2 years, during this period they continue the secular education through external stream. There a few young boys who did the Aalim course after their pre-university and rejoined the secular education. So doctors, engineers with certified Aalim graduation. A part time (weekend) course for working men is offered by Darul uloom Nadwah. We didn't had these opportunities during our younger days. These are a few exceptional cases.