Professional soccer players are not required to wear any certain type of shin guard. Most soccer players in high level soccer, my team included, wear small tough shin guards that aren't bulky but still offer protection. I myself use Nike shin guards, but there is no official requirement for brand or type.
Yes, many professional soccer players wear shin guards. You can see these guards during the soccer games on television, and they are often worn under the socks.
You need shin guards, socks (long soccer socks to cover the shin guards), a T-shirt, shorts, soccer ball, and cleats.
Its mandatory that you do
Shin guards are worn under soccer socks because the socks keep the shin guards in place, right in front of the shins. If the shin guards were worn on top of the socks all shin guards without straps would not remain on and even those that have straps that go around the back of the leg will not keep the shin guards in place.
Field equipment needed for an indoor soccer match includes 2 soccer goals and a soccer ball. Player equipment includes indoor soccer cleats, clothing (soccer socks, shorts, jersey), and shin guards. You should never play soccer without shin guards.
Yes you can
Cleats/boots, shin guards, socks that cover the shin guards, and every one in the game must have at least a matching jersey.
Because they wear shin guards and most of the shin guards go down to your ankles.
They all have to wear them.