Has anyone else's baby started furniture cruising yet? How long does this stage last before they start to walk on their own?

I ever watched a show on channel 8 and doctor said that babies should learn crawling not straight to walking because by crawling they will strengthen the lower back muscles which is essential for them. Same advise was also given by a Taiwanese doctor from those Taiwan health shows. Hence, should encourage crawling and cruising around at the same time.