Please capitalize where necessary: it is really only you that has access to this today, but this will not continue to be the case.
A: It is really only you that has access to this today, but this will not continue to be the case.

Please capitalize where necessary: an older man in the sun is wearing a cap, jacket and pullover.
A: An older man in the sun is wearing a cap, jacket and pullover.

Please capitalize where necessary: it can also lead to tooth decay.
A: It can also lead to tooth decay.

Please capitalize where necessary: georg frobenius's father was christian ferdinand frobenius, a protestant parson, and his mother was christine elizabeth friedrich. georg was born in charlottenburg which was a district of berlin which was not incorporated into the city until 1920.
A:
Georg Frobenius's father was Christian Ferdinand Frobenius, a Protestant parson, and his mother was Christine Elizabeth Friedrich. Georg was born in Charlottenburg which was a district of Berlin which was not incorporated into the city until 1920.