You can find lots of free tutors on youtube.
Yes! I began learning at the age of 60 from YouTube. Justin Guitar, Andy Guitar, Simplified Guitar, just to name a few great teachers. Ivor Sorefingers is wonderful, too. I’ll never be Carlos Santana, lol, but I enjoy learning an instrument that I loved as a kid but we couldn’t afford lessons. Now I also play the ukulele, which is easier to learn and great fun.