Hi has anyone else had this issue.
Many times, as you will see if you use the search box to look for this subject.
The answer is always the same. eBay will only accept a credit card for age verification.
There are other methods, but all would require eBay to examine proofs. Requiring use of a credit card makes this unnecessary, as a credit card is not available to persons below 18 years of age.
If you think eBay should change this policy you could try suggesting this. But eBay's policy on suggestions from members is that they don't accept suggestions from members.