Dic: get to do something

[Cobuild 10] If you get to do something, you eventually or gradually reach a stage at which you do it.

• No one could figure out how he got to be so wealthy.

cf. [OALD] STATE/CONDITION:
12. [v + to inf] to reach the point at which you feel(know, are, etc.) sth.

• After a time you get to realize that these things don’t matter. 
• You’ll like her once you get to know her. 
• His drinking is getting to be a problem. 
• She’s getting to be an old lady now. 

[Cobuild 11] If you get to do something, you manage to do it or have the opportunity to do it.

• Do you get to see him often?
• They get to stay in nice hotels.

cf. [OALD] OPPORTUNITY
16. [v+ to inf] (informal) to have the opportunity to do sth.

• He got to try out all the new software.
• It’s not fair—I never get to go first. 

..... Cobuild, OALD